Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.WorkflowServices/AssemblyInfo.cs.REMOVED.git-id

@@ -0,0 +1 @@
+000280f2ec63eb1649fb91da59f54b82bcd52643

mcs/class/referencesource/System.WorkflowServices/GlobalSuppressions.cs

@@ -0,0 +1,50 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+using System.Diagnostics.CodeAnalysis;
+
+// Code copied from WCF V1
+[module: SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility+InternalException..ctor(System.Boolean)", MessageId = "System.SystemException.#ctor(System.String)")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperArgumentNull(System.String,System.String):System.ArgumentNullException")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperCallback(System.Exception):System.Exception")]
+[module: SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperCallback(System.Exception):System.Exception", MessageId = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperCallback(System.String,System.Exception)")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperFatal(System.String,System.Exception):System.Exception")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperWarning(System.Exception):System.Exception")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.ServiceModel.Diagnostics.ExceptionUtility.ThrowHelperArgument(System.String):System.ArgumentException")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.ServiceModel.Diagnostics.FatalException..ctor(System.String)")]
+
+// Code copied from WF V1
+[module: SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes", Scope = "member", Target = "System.Workflow.ComponentModel.Walker.WalkProperties(System.Workflow.ComponentModel.Activity,System.Object):System.Boolean")]
+[module: SuppressMessage("Reliability", "Reliability104:CaughtAndHandledExceptionsRule", Scope = "member", Target = "System.Workflow.ComponentModel.Walker.WalkProperties(System.Workflow.ComponentModel.Activity,System.Object):System.Boolean")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.Walker..ctor(System.Boolean)")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.Walker..ctor(System.Object)")]
+
+
+// Added by ramrajb,  This warning is issued on the dialog resources of the System.Workflow.Activities dialgos, which hold types from System.WorkflowServices.dll , this warning complains that the assembly version does not match the Mscorlib assemblyversion of 4.0.0.0 , thats why this message is suppressed globally.
+
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceContractDetailViewControl.resources", MessageId = ">>$this.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceContractViewControl.resources", MessageId = ">>backgroundPanel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceContractViewControl.resources", MessageId = ">>$this.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceContractViewControl.resources", MessageId = ">>contractNameLabel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.OperationPickerDialog.resources", MessageId = ">>footerPanel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.OperationPickerDialog.resources", MessageId = ">>detailsViewPanel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.OperationPickerDialog.resources", MessageId = ">>operationsPanel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.OperationPickerDialog.resources", MessageId = ">>operationsListBox.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.OperationPickerDialog.resources", MessageId = ">>contentPanel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceOperationDetailViewControl.resources", MessageId = ">>$this.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceOperationDetailViewControl.resources", MessageId = ">>editableLabelControl1.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceOperationViewControl.resources", MessageId = ">>backgroundPanel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceOperationViewControl.resources", MessageId = ">>$this.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ServiceOperationViewControl.resources", MessageId = ">>operationNameLabel.Type")]
+[module: SuppressMessage("Microsoft.Usage", "CA2228:DoNotShipUnreleasedResourceFormats", Scope = "resource", Target = "System.Workflow.Activities.Design.ReflectedServiceOperationDetailViewControl.resources", MessageId = ">>$this.Type")]
+
+// Added by tvish for jself. These suppressions are for violations in red bits that are temporarily copied over.
+
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.WalkerEventArgs.get_CurrentValue():System.Object")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.WalkerEventArgs.get_UserData():System.Object")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.WalkerEventArgs.get_CurrentPropertyName():System.String")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.WalkerEventArgs.get_CurrentPropertyOwner():System.Object")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.WalkerEventArgs.get_CurrentProperty():System.Reflection.PropertyInfo")]
+[module: SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode", Scope = "member", Target = "System.Workflow.ComponentModel.WalkerEventArgs.set_Action(System.Workflow.ComponentModel.WalkerAction):System.Void")]
+[module: SuppressMessage("Reliability", "Reliability102:WrapExceptionsRule", Scope = "member", Target = "System.Workflow.Activities.ParameterInfoBasedPropertyDescriptor..ctor(System.Type,System.Reflection.ParameterInfo,System.Boolean,System.Attribute[])")]

mcs/class/referencesource/System.WorkflowServices/ImageResources.Designer.cs

@@ -0,0 +1,147 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:2.0.50727.312
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace System.ServiceModel {
+    using System;
+    
+    
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class ImageResources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal ImageResources() {
+        }
+        
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("ImageResources", typeof(ImageResources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Add {
+            get {
+                object obj = ResourceManager.GetObject("Add", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap AddContract {
+            get {
+                object obj = ResourceManager.GetObject("AddContract", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap AddOperation {
+            get {
+                object obj = ResourceManager.GetObject("AddOperation", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Arrow {
+            get {
+                object obj = ResourceManager.GetObject("Arrow", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Check {
+            get {
+                object obj = ResourceManager.GetObject("Check", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Contract {
+            get {
+                object obj = ResourceManager.GetObject("Contract", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Delete {
+            get {
+                object obj = ResourceManager.GetObject("Delete", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Down {
+            get {
+                object obj = ResourceManager.GetObject("Down", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Import {
+            get {
+                object obj = ResourceManager.GetObject("Import", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap ImportedContract {
+            get {
+                object obj = ResourceManager.GetObject("ImportedContract", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Operation {
+            get {
+                object obj = ResourceManager.GetObject("Operation", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        internal static System.Drawing.Bitmap Up {
+            get {
+                object obj = ResourceManager.GetObject("Up", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/SR.cs

@@ -0,0 +1,105 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.ServiceModel
+{
+    using System;
+    using System.ComponentModel;
+    using System.Globalization;
+    using System.Reflection;
+    using System.Resources;
+    using System.Runtime;
+
+    [AttributeUsage(AttributeTargets.All)]
+    sealed class SR2DescriptionAttribute : DescriptionAttribute
+    {
+        internal const string SendActivityDescription = "SendActivityDescription";
+        internal const string ReceiveActivityDescription = "ReceiveActivityDescription";
+        internal const string Receive_OperationValidation_Description = "Receive_OperationValidation_Description";
+        internal const string Receive_CanCreateInstance_Description = "Receive_CanCreateInstance_Description";
+        internal const string Receive_ContextToken_Description = "Receive_ContextToken_Description";
+        internal const string Receive_FaultMessage_Description = "Receive_FaultMessage_Description";
+        internal const string Receive_OperationInfo_Description = "Receive_OperationInfo_Description";
+        internal const string Send_AfterResponse_Description = "Send_AfterResponse_Description";
+        internal const string Send_BeforeSend_Description = "Send_BeforeSend_Description";
+        internal const string Send_ChannelToken_Description = "Send_ChannelToken_Description";
+        internal const string Send_CustomAddress_Description = "Send_CustomAddress_Description";
+        internal const string Send_OperationInfo_Description = "Send_OperationInfo_Description";
+        internal const string ContextToken_Name_Description = "ContextToken_Name_Description";
+        internal const string ContextToken_OwnerActivityName_Description = "ContextToken_OwnerActivityName_Description";
+        internal const string ChannelToken_EndpointName_Description = "ChannelToken_EndpointName_Description";
+        internal const string ChannelToken_Name_Description = "ChannelToken_Name_Description";
+        internal const string ChannelToken_OwnerActivityName_Description = "ChannelToken_OwnerActivityName_Description";
+        
+        public SR2DescriptionAttribute(string description)
+        {
+            DescriptionValue = SR2.ResourceManager.GetString(description, SR2.Culture);
+        }
+
+        public SR2DescriptionAttribute(string description, string resourceSet)
+        {
+            ResourceManager rm = new ResourceManager(resourceSet, Assembly.GetExecutingAssembly());
+            DescriptionValue = rm.GetString(description);
+            Fx.Assert(DescriptionValue != null, string.Format(CultureInfo.CurrentCulture, "String resource {0} not found.", new object[] { description }));
+        }
+    }
+
+    [AttributeUsage(AttributeTargets.All)]
+    sealed class SR2CategoryAttribute : CategoryAttribute
+    {
+        string resourceSet = String.Empty;
+        internal const string Activity = "Activity";
+        internal const string Standard = "Standard";
+        internal const string Handlers = "Handlers";
+
+        public SR2CategoryAttribute(string category)
+            : base(category)
+        {
+        }
+
+        public SR2CategoryAttribute(string category, string resourceSet)
+            : base(category)
+        {
+            this.resourceSet = resourceSet;
+        }
+
+        protected override string GetLocalizedString(string value)
+        {
+            if (this.resourceSet.Length > 0)
+            {
+                ResourceManager rm = new ResourceManager(resourceSet, Assembly.GetExecutingAssembly());
+                String localizedString = rm.GetString(value);
+                Fx.Assert(localizedString != null, string.Format(CultureInfo.CurrentCulture, "String resource {0} not found.", new object[] { value }));
+                return localizedString;
+            }
+            else
+            {
+                return SR2.ResourceManager.GetString(value, SR2.Culture);
+            }
+        }
+    }    
+    /// <summary>
+    ///    This is a stub for auto-generated resource class, providing GetString function. Usage:
+    ///
+    ///        string s = SR2.GetString(SR2.MyIdenfitier);
+    /// </summary>
+    sealed partial class SR2
+    {
+        internal static string GetString(string name, params object[] args)
+        {
+            return GetString(resourceCulture, name, args);
+        }
+        internal static string GetString(CultureInfo culture, string name, params object[] args)
+        {
+            if (args != null && args.Length > 0)
+            {
+                return string.Format(culture, name, args);
+            }
+            else
+            {
+                return name;
+            }
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activation/WorkflowServiceBuildProvider.cs

@@ -0,0 +1,54 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Activation
+{
+    using System.CodeDom.Compiler;
+    using System.Collections;
+    using System.Diagnostics.CodeAnalysis;
+    using System.IO;
+    using System.Web.Compilation;
+
+    [SuppressMessage("Microsoft.Performance", "CA1812:AvoidUninstantiatedInternalClasses", Justification = "instantiated from config")]
+    [BuildProviderAppliesTo(BuildProviderAppliesTo.All)]
+    [ServiceActivationBuildProvider]
+    class WorkflowServiceBuildProvider : BuildProvider
+    {
+        internal const string ruleFileExtension = ".rules";
+        object[] virtualPathDependencies;
+
+        public override ICollection VirtualPathDependencies
+        {
+            get
+            {
+                if (this.virtualPathDependencies == null)
+                {
+                    ArrayList dependencies = new ArrayList(base.VirtualPathDependencies.Count + 1);
+                    dependencies.AddRange(base.VirtualPathDependencies);
+                    dependencies.Add(Path.ChangeExtension(base.VirtualPath, ruleFileExtension));
+                    this.virtualPathDependencies = dependencies.ToArray();
+                }
+                return virtualPathDependencies;
+            }
+        }
+
+        Type ServiceHostFactoryType
+        {
+            get
+            {
+                return typeof(WorkflowServiceHostFactory);
+            }
+        }
+
+        //CompileStringTemplate : "__VIRTUAL_PATH__|__FACTORY_NAME__|__SERVICE_VALUE__";
+        public override string GetCustomString(CompilerResults results)
+        {
+            return (base.VirtualPath + "|" + ServiceHostFactoryType.AssemblyQualifiedName + "|" + base.VirtualPath);
+        }
+
+        public override BuildProviderResultFlags GetResultFlags(CompilerResults results)
+        {
+            return BuildProviderResultFlags.ShutdownAppDomainOnChange;
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activation/WorkflowServiceHostFactory.cs

@@ -0,0 +1,206 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Activation
+{
+    using System.Web;
+    using System.Web.Hosting;
+    using System.IO;
+    using System.ServiceModel.Diagnostics;
+    using System.Web.Compilation;
+    using System.Reflection;
+    using System.Workflow.Runtime;
+    using System.Workflow.ComponentModel.Compiler;
+    using System.Diagnostics;
+
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public class WorkflowServiceHostFactory : ServiceHostFactoryBase
+    {
+        TypeProvider typeProvider;
+
+        public override ServiceHostBase CreateServiceHost(string constructorString, Uri[] baseAddresses)
+        {
+            WorkflowDefinitionContext workflowDefinitionContext = null;
+
+            Stream workflowDefinitionStream = null;
+            Stream ruleDefinitionStream = null;
+
+            if (string.IsNullOrEmpty(constructorString))
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.WorkflowServiceHostFactoryConstructorStringNotProvided)));
+            }
+
+            if (!HostingEnvironment.IsHosted)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.ProcessNotExecutingUnderHostedContext)));
+            }
+
+            Type workflowType = this.GetTypeFromString(constructorString, baseAddresses);
+
+            if (workflowType != null)
+            {
+                workflowDefinitionContext = new CompiledWorkflowDefinitionContext(workflowType);
+            }
+            else
+            {
+                try
+                {
+                    IDisposable impersonationContext = null;
+                    try
+                    {
+                        try
+                        {
+
+                        }
+                        finally
+                        {
+                            //Ensure thread.Abort doesnt interfere b/w impersonate & assignment.
+                            impersonationContext = HostingEnvironment.Impersonate();
+                        }
+
+                        string xomlVirtualPath = Path.Combine(AspNetEnvironment.Current.CurrentVirtualPath, constructorString);
+
+                        if (HostingEnvironment.VirtualPathProvider.FileExists(xomlVirtualPath))
+                        {
+                            workflowDefinitionStream = HostingEnvironment.VirtualPathProvider.GetFile(xomlVirtualPath).Open();
+                            string ruleFilePath = Path.ChangeExtension(xomlVirtualPath, WorkflowServiceBuildProvider.ruleFileExtension);
+
+                            if (HostingEnvironment.VirtualPathProvider.FileExists(ruleFilePath))
+                            {
+                                ruleDefinitionStream = HostingEnvironment.VirtualPathProvider.GetFile(ruleFilePath).Open();
+                                workflowDefinitionContext = new StreamedWorkflowDefinitionContext(workflowDefinitionStream, ruleDefinitionStream, this.typeProvider);
+                            }
+                            else
+                            {
+                                workflowDefinitionContext = new StreamedWorkflowDefinitionContext(workflowDefinitionStream, null, this.typeProvider);
+                            }
+                        }
+                    }
+                    finally
+                    {
+                        if (impersonationContext != null)
+                        {
+                            impersonationContext.Dispose();
+                        }
+                    }
+                }
+                catch
+                {
+                    throw; //Prevent impersonation leak through Exception Filters.
+                }
+                finally
+                {
+                    if (workflowDefinitionStream != null)
+                    {
+                        workflowDefinitionStream.Close();
+                    }
+
+                    if (ruleDefinitionStream != null)
+                    {
+                        ruleDefinitionStream.Close();
+                    }
+                }
+            }
+
+            if (workflowDefinitionContext == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.CannotResolveConstructorStringToWorkflowType, constructorString)));
+            }
+
+            WorkflowServiceHost serviceHost = new WorkflowServiceHost(workflowDefinitionContext, baseAddresses);
+
+            if (DiagnosticUtility.ShouldTraceInformation)
+            {
+                TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.WorkflowServiceHostCreated, SR.GetString(SR.TraceCodeWorkflowServiceHostCreated), this);
+            }
+            return serviceHost;
+        }
+
+        Type GetTypeFromString(string typeString, Uri[] baseAddresses)
+        {
+            if (baseAddresses == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("baseAddresses");
+            }
+            if (baseAddresses.Length == 0)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.BaseAddressesNotProvided)));
+            }
+
+            Type workflowType = Type.GetType(typeString, false);
+
+            if (workflowType == null)
+            {
+                this.typeProvider = new TypeProvider(null);
+
+                // retrieve the reference assembly names from the compiled string supplied by the build manager
+                string compiledString;
+                try
+                {
+                    IDisposable impersonationContext = null;
+                    try
+                    {
+                        try
+                        {
+
+                        }
+                        finally
+                        {
+                            //Ensure Impersonation + Assignment is atomic w.r.t to potential Thread.Abort.
+                            impersonationContext = HostingEnvironment.Impersonate();
+                        }
+                        compiledString = BuildManager.GetCompiledCustomString(baseAddresses[0].AbsolutePath);
+                    }
+                    finally
+                    {
+                        if (impersonationContext != null)
+                        {
+                            impersonationContext.Dispose();
+                        }
+                    }
+                }
+                catch
+                {
+                    throw; //Prevent impersonation leak through exception filters.
+                }
+
+                if (string.IsNullOrEmpty(compiledString))
+                {
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.InvalidCompiledString, baseAddresses[0].AbsolutePath)));
+                }
+                string[] components = compiledString.Split('|');
+                if (components.Length < 3)
+                {
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.InvalidCompiledString, baseAddresses[0].AbsolutePath)));
+                }
+
+                //Walk reverse direction to increase our chance to match assembly;
+                for (int i = (components.Length - 1); i > 2; i--)
+                {
+                    Assembly assembly = Assembly.Load(components[i]);
+                    this.typeProvider.AddAssembly(assembly);
+                    workflowType = assembly.GetType(typeString, false);
+                    if (workflowType != null)
+                    {
+                        break;
+                    }
+                }
+
+                if (workflowType == null)
+                {
+                    foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
+                    {
+                        this.typeProvider.AddAssembly(assembly);
+
+                        workflowType = assembly.GetType(typeString, false);
+                        if (workflowType != null)
+                        {
+                            break;
+                        }
+                    }
+                }
+            }
+            return workflowType;
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activities/Description/WorkflowRuntimeEndpoint.cs

@@ -0,0 +1,99 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System.ServiceModel.Activities.Description
+{
+    using System.Activities.Statements;
+    using System.Collections.ObjectModel;
+    using System.Diagnostics;
+    using System.Globalization;
+    using System.Runtime;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Description;
+    using System.ServiceModel.Dispatcher;
+    using System.Runtime.DurableInstancing;
+    using System.Collections.Generic;
+    using System.Threading;
+    using System.ServiceModel.Diagnostics;
+    using System.Activities;
+
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public class WorkflowRuntimeEndpoint : WorkflowHostingEndpoint
+    {
+        static readonly Uri baseUri = new Uri(string.Format(CultureInfo.InvariantCulture, "net.pipe://localhost/ExternalDataExchangeEndpoint/{0}/{1}",
+            Process.GetCurrentProcess().Id,
+            AppDomain.CurrentDomain.Id));
+
+        static int uriCounter = 0;
+        internal static readonly Binding netNamedPipeContextBinding = new CustomBinding(new ContextBindingElement(),
+                new BinaryMessageEncodingBindingElement(),
+                new NamedPipeTransportBindingElement()) { Name = "ExternalDataExchangeBinding" };
+
+        WorkflowRuntimeServicesBehavior behavior;
+
+        internal const string ExternalDataExchangeNamespace = "http://wf.microsoft.com/externaldataexchange/";
+        internal const string RaiseEventAction = "http://wf.microsoft.com/externaldataexchange/IExternalDataExchange/RaiseEvent";
+
+        public WorkflowRuntimeEndpoint()
+            : base(typeof(IExternalDataExchange))
+        {          
+            base.Binding = netNamedPipeContextBinding;
+            string endpointUri = String.Format(CultureInfo.InvariantCulture, "{0}/{1}", baseUri, Interlocked.Increment(ref uriCounter));
+            base.Address = new EndpointAddress(endpointUri);
+            this.behavior = new WorkflowRuntimeServicesBehavior();
+            this.Behaviors.Add(behavior);
+        }
+
+        protected override Guid OnGetInstanceId(object[] inputs, OperationContext operationContext)
+        {
+            Fx.Assert(operationContext.IncomingMessageHeaders.Action == RaiseEventAction, "Message action is not RaiseEvent");
+            Guid instanceId = Guid.Empty;
+            ContextMessageProperty contextMessageProperty;
+            if (ContextMessageProperty.TryGet(operationContext.IncomingMessageProperties, out contextMessageProperty))
+            {
+                string stringInstanceId = null;
+                if (contextMessageProperty.Context.TryGetValue("instanceId", out stringInstanceId))
+                {
+                    Fx.TryCreateGuid(stringInstanceId, out instanceId);                    
+                }
+            }
+
+            return instanceId;
+        }
+
+        protected override Bookmark OnResolveBookmark(object[] inputs, OperationContext operationContext, WorkflowHostingResponseContext responseContext, out object value)
+        {
+            Fx.Assert(operationContext.IncomingMessageHeaders.Action == RaiseEventAction, "Message action is not RaiseEvent");
+
+            Fx.Assert(inputs.Length >= 3, "Insufficient number of inputs");
+
+            Fx.Assert(inputs[1] is IComparable, "The queue name from ExternalDataExchangeService is not an IComparable object");
+            IComparable queueName = (IComparable)inputs[1];
+           
+            value = inputs[2];
+            responseContext.SendResponse(null, null);
+            return new Bookmark(queueName.ToString());
+        }
+
+        public void AddService(object service)
+        {
+            behavior.AddService(service);
+        }
+
+        public void RemoveService(object service)
+        {
+            behavior.RemoveService(service);
+        }
+
+        public object GetService(Type serviceType)
+        {
+            return behavior.GetService(serviceType);
+        }
+
+        public T GetService<T>()
+        {
+            return behavior.GetService<T>();
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activities/Description/WorkflowRuntimeServicesBehavior.cs

@@ -0,0 +1,89 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System.ServiceModel.Activities.Description
+{
+    using System.Activities.Statements;
+    using System.Collections.ObjectModel;
+    using System.Diagnostics;
+    using System.Globalization;
+    using System.Runtime;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Description;
+    using System.ServiceModel.Dispatcher;
+    using System.Runtime.DurableInstancing;
+    using System.Collections.Generic;
+    using System.Threading;
+    using System.ServiceModel.Diagnostics;
+
+    [Fx.Tag.XamlVisible(false)]
+    class WorkflowRuntimeServicesBehavior : IEndpointBehavior
+    {
+        WorkflowRuntimeServicesExtensionProvider extensionProvider;
+
+        public WorkflowRuntimeServicesBehavior()
+        {
+            this.extensionProvider = new WorkflowRuntimeServicesExtensionProvider();
+        }
+
+        public void AddService(object service)
+        {
+            if (service == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("service");
+            }
+            this.extensionProvider.AddService(service);
+        }
+
+        public void RemoveService(object service)
+        {
+            if (service == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("service");
+            }
+            this.extensionProvider.RemoveService(service);
+        }
+
+        public object GetService(Type serviceType)
+        {
+            if (serviceType == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceType");
+            }
+            return this.extensionProvider.GetService(serviceType);
+        }
+
+        public T GetService<T>()
+        {
+            return this.extensionProvider.GetService<T>();
+        }
+
+        public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
+        {
+        }
+
+        public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
+        {
+        }
+
+        public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
+        {
+            WorkflowServiceHost serviceHost = endpointDispatcher.ChannelDispatcher.Host as WorkflowServiceHost;
+            if (serviceHost != null)
+            {
+                foreach (OperationDescription operation in endpoint.Contract.Operations)
+                {
+                    NetDataContractSerializerOperationBehavior netDataContractSerializerOperationBehavior =
+                        NetDataContractSerializerOperationBehavior.ApplyTo(operation);
+                }
+
+                this.extensionProvider.PopulateExtensions(serviceHost, endpointDispatcher.EndpointAddress.Uri.AbsoluteUri);
+            }
+        }
+
+        public void Validate(ServiceEndpoint endpoint)
+        {
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activities/ExternalDataExchangeClient.cs

@@ -0,0 +1,31 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System.ServiceModel.Activities
+{
+    using System.Runtime;
+    using System.ServiceModel;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Description;
+    using System.Workflow.Activities;
+
+    class ExternalDataExchangeClient : ClientBase<IExternalDataExchange>
+    {
+        public ExternalDataExchangeClient(Binding binding, EndpointAddress address)
+            : base(binding, address)
+        {
+            ContractDescription contractDescription = this.Endpoint.Contract;
+            foreach (OperationDescription opDesc in contractDescription.Operations)
+            {
+                NetDataContractSerializerOperationBehavior netDataContractSerializerOperationBehavior = NetDataContractSerializerOperationBehavior.ApplyTo(opDesc);
+                Fx.Assert(netDataContractSerializerOperationBehavior != null, "IExternalDataExchange must use NetDataContractSerializer.");
+            }
+        }
+
+        public void RaiseEvent(ExternalDataEventArgs eventArgs, IComparable queueName, object message)
+        {
+            base.Channel.RaiseEvent(eventArgs, queueName, message);
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activities/IExternalDataExchange.cs

@@ -0,0 +1,15 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.ServiceModel.Activities
+{
+    using System.ServiceModel;
+
+    [ServiceContract(Namespace = Description.WorkflowRuntimeEndpoint.ExternalDataExchangeNamespace)]
+    interface IExternalDataExchange
+    {
+        [OperationContract(IsOneWay = true, Action = Description.WorkflowRuntimeEndpoint.RaiseEventAction)]
+        void RaiseEvent(EventArgs eventArgs, IComparable queueName, object message);
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activities/WorkflowClientDeliverMessageWrapper.cs

@@ -0,0 +1,65 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System.ServiceModel.Activities
+{
+    using System.Collections.Generic;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Runtime;
+    using System.ServiceModel;
+    using System.ServiceModel.Activities.Description;
+    using System.ServiceModel.Channels;
+    using System.Workflow.Activities;
+    using System.Workflow.Runtime;
+    using System.ServiceModel.Description;
+    using System.ServiceModel.Diagnostics;
+
+    class WorkflowClientDeliverMessageWrapper : IDeliverMessage
+    {
+        string baseUri;
+        public WorkflowClientDeliverMessageWrapper(string baseUri)
+        {
+            this.baseUri = baseUri;
+        }
+
+        public object[] PrepareEventArgsArray(object sender, ExternalDataEventArgs eventArgs, out object workItem, out IPendingWork workHandler)
+        {
+            workItem = null;
+            workHandler = null;
+            return new object[] { sender, eventArgs };
+        }
+        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.AptcaMethodsShouldOnlyCallAptcaMethods,
+            Justification = "Calling into already shipped assembly; can't apply APTCA")]
+        public void DeliverMessage(ExternalDataEventArgs eventArgs, IComparable queueName, object message, object workItem, IPendingWork workHandler)
+        {
+            if (eventArgs == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("eventArgs");
+            }
+            if (queueName == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("queueName");
+            }
+
+            using (ExternalDataExchangeClient desClient = new ExternalDataExchangeClient(WorkflowRuntimeEndpoint.netNamedPipeContextBinding,
+                new EndpointAddress(this.baseUri)))
+            {
+                using (OperationContextScope scope = new OperationContextScope((IContextChannel)desClient.InnerChannel))
+                {
+                    IContextManager contextManager = desClient.InnerChannel.GetProperty<IContextManager>();
+                    Fx.Assert(contextManager != null, "IContextManager must not be null.");
+                    if (contextManager != null)
+                    {
+                        IDictionary<string, string> context = new Dictionary<string, string>();
+                        context["instanceId"] = eventArgs.InstanceId.ToString();
+                        contextManager.SetContext(context);
+                    }
+
+                    desClient.RaiseEvent(eventArgs, queueName, message);
+                }
+            }
+  
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Activities/WorkflowRuntimeServicesExtensionProvider.cs

@@ -0,0 +1,79 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System.ServiceModel.Activities
+{
+    using System.Collections.Generic;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Runtime;
+    using System.Workflow.Activities;
+
+    class WorkflowRuntimeServicesExtensionProvider
+    {
+        Dictionary<Type, object> services;
+
+        public WorkflowRuntimeServicesExtensionProvider()
+        {
+            this.services = new Dictionary<Type, object>();
+        }
+
+        public void AddService(object service)
+        {
+            Fx.Assert(service != null, "This should have been checked by our caller.");
+
+            this.services.Add(service.GetType(), service);
+        }
+
+        public void RemoveService(object service)
+        {
+            Fx.Assert(service != null, "This should have been checked by our caller.");
+
+            this.services.Remove(service.GetType());
+        }
+
+        [SuppressMessage(FxCop.Category.Security, FxCop.Rule.AptcaMethodsShouldOnlyCallAptcaMethods, Justification = "APTCA related issues are not relevant because this code path is not supported in partial trust.")]
+        public object GetService(Type serviceType)
+        {
+            object service;
+            if (!this.services.TryGetValue(serviceType, out service))
+            {
+                object dataExchangeService;
+                if (this.services.TryGetValue(typeof(ExternalDataExchangeService), out dataExchangeService))
+                {
+                    Fx.Assert(dataExchangeService is ExternalDataExchangeService, "Something went wrong with our housekeeping.");
+
+                    service = ((ExternalDataExchangeService)dataExchangeService).GetService(serviceType);
+                }
+            }
+
+            return service;
+        }
+
+        public T GetService<T>()
+        {
+            return (T)GetService(typeof(T));
+        }
+
+        internal void PopulateExtensions(WorkflowServiceHost host, string baseUri)
+        {
+            Fx.Assert(host != null, "WorkflowServiceHost parameter was null");
+
+            foreach (object service in this.services.Values)
+            {
+                host.WorkflowExtensions.Add(service);
+
+                ExternalDataExchangeService dataExchangeService = service as ExternalDataExchangeService;
+                if (dataExchangeService != null)
+                {
+                    dataExchangeService.SetEnqueueMessageWrapper(new WorkflowClientDeliverMessageWrapper(baseUri));
+
+                    foreach (object innerService in dataExchangeService.GetAllServices())
+                    {
+                        host.WorkflowExtensions.Add(innerService);
+                    }
+                }
+            }
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Configuration/ExtendedWorkflowRuntimeServiceElementCollection.cs

@@ -0,0 +1,33 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Configuration
+{
+    using System.Configuration;
+    using System.Workflow.Runtime.Configuration;
+    using System.Diagnostics.CodeAnalysis;
+
+    // Legacy WF V1 configuration extension
+    [SuppressMessage("Configuration", "Configuration100")]
+    [SuppressMessage("Configuration", "Configuration101")]
+    [ConfigurationCollection(typeof(WorkflowRuntimeServiceElement))]
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public class ExtendedWorkflowRuntimeServiceElementCollection : WorkflowRuntimeServiceElementCollection
+    {
+        public ExtendedWorkflowRuntimeServiceElementCollection()
+            : base()
+        {
+            // empty
+        }
+
+        public void Remove(WorkflowRuntimeServiceElement serviceSettings)
+        {
+            base.BaseRemove(base.GetElementKey(serviceSettings));
+        }
+
+        public void Remove(string key)
+        {
+            base.BaseRemove(key);
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Configuration/PersistenceProviderElement.cs

@@ -0,0 +1,161 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Configuration
+{
+    using System;
+    using System.Collections.Specialized;
+    using System.ComponentModel;
+    using System.Configuration;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Reflection;
+    using System.Runtime;
+    using System.ServiceModel.Description;
+    using System.ServiceModel.Persistence;
+    using System.Workflow.Runtime;
+    using System.Xml;
+
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public class PersistenceProviderElement : BehaviorExtensionElement
+    {
+        const string persistenceOperationTimeoutParameter = "persistenceOperationTimeout";
+        const string typeParameter = "type";
+        int argumentsHash;
+
+        NameValueCollection persistenceProviderArguments;
+
+        public PersistenceProviderElement()
+        {
+            this.persistenceProviderArguments = new NameValueCollection();
+            this.argumentsHash = this.ComputeArgumentsHash();
+        }
+
+        // This property is not supposed to be exposed in config. 
+        [SuppressMessage("Configuration", "Configuration102:ConfigurationPropertyAttributeRule")]
+        public override Type BehaviorType
+        {
+            get { return typeof(PersistenceProviderBehavior); }
+        }
+
+        [ConfigurationProperty(
+            persistenceOperationTimeoutParameter,
+            IsRequired = false,
+            DefaultValue = PersistenceProviderBehavior.DefaultPersistenceOperationTimeoutString)]
+        [TypeConverter(typeof(TimeSpanOrInfiniteConverter))]
+        [PositiveTimeSpanValidator]
+        public TimeSpan PersistenceOperationTimeout
+        {
+            get { return (TimeSpan) base[persistenceOperationTimeoutParameter]; }
+            set { base[persistenceOperationTimeoutParameter] = value; }
+        }
+
+        [SuppressMessage("Configuration", "Configuration102:ConfigurationPropertyAttributeRule")]
+        public NameValueCollection PersistenceProviderArguments
+        {
+            get { return this.persistenceProviderArguments; }
+        }
+
+        [ConfigurationProperty(typeParameter, IsRequired = true)]
+        [StringValidator(MinLength = 0)]
+        public string Type
+        {
+            get { return (string) base[typeParameter]; }
+            set { base[typeParameter] = value; }
+        }
+
+        protected internal override object CreateBehavior()
+        {
+            Fx.Assert(this.PersistenceOperationTimeout > TimeSpan.Zero,
+                "This should have been guaranteed by the validator on the setter.");
+
+            PersistenceProviderFactory providerFactory;
+
+            Type providerType = System.Type.GetType((string) base[typeParameter]);
+
+            if (providerType == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                    new InvalidOperationException(SR2.GetString(SR2.PersistenceProviderTypeNotFound)));
+            }
+
+            ConstructorInfo cInfo = providerType.GetConstructor(new Type[] { typeof(NameValueCollection) });
+
+            if (cInfo != null)
+            {
+                providerFactory = (PersistenceProviderFactory) cInfo.Invoke(new object[] { this.persistenceProviderArguments });
+            }
+            else
+            {
+                cInfo = providerType.GetConstructor(new Type[] { });
+
+                Fx.Assert(cInfo != null,
+                    "The constructor should have been found - this should have been validated elsewhere.");
+
+                providerFactory = (PersistenceProviderFactory) cInfo.Invoke(null);
+            }
+
+            return new PersistenceProviderBehavior(providerFactory, this.PersistenceOperationTimeout);
+        }
+
+        protected override bool IsModified()
+        {
+            return base.IsModified() || this.argumentsHash != this.ComputeArgumentsHash();
+        }
+
+        protected override bool OnDeserializeUnrecognizedAttribute(string name, string value)
+        {
+            persistenceProviderArguments.Add(name, value);
+
+            return true;
+        }
+
+        protected override void PostDeserialize()
+        {
+            this.argumentsHash = this.ComputeArgumentsHash();
+            base.PostDeserialize();
+        }
+
+        protected override bool SerializeElement(XmlWriter writer, bool serializeCollectionKey)
+        {
+            bool result;
+
+            if (writer != null)
+            {
+                foreach (string key in this.persistenceProviderArguments.AllKeys)
+                {
+                    writer.WriteAttributeString(key, this.persistenceProviderArguments[key]);
+                }
+
+                result = base.SerializeElement(writer, serializeCollectionKey);
+                result |= this.persistenceProviderArguments.Count > 0;
+                this.argumentsHash = this.ComputeArgumentsHash();
+            }
+            else
+            {
+                result = base.SerializeElement(writer, serializeCollectionKey);
+            }
+
+            return result;
+        }
+
+        protected override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode)
+        {
+            PersistenceProviderElement persistenceProviderElement = (PersistenceProviderElement) sourceElement;
+            this.persistenceProviderArguments = new NameValueCollection(persistenceProviderElement.persistenceProviderArguments);
+            this.argumentsHash = persistenceProviderElement.argumentsHash;
+            base.Unmerge(sourceElement, parentElement, saveMode);
+        }
+
+        int ComputeArgumentsHash()
+        {
+            int result = 0;
+
+            foreach (string key in this.persistenceProviderArguments.AllKeys)
+            {
+                result ^= key.GetHashCode() ^ this.persistenceProviderArguments[key].GetHashCode();
+            }
+
+            return result;
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Configuration/WorkflowRuntimeElement.cs

@@ -0,0 +1,164 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Configuration
+{
+    using System.ComponentModel;
+    using System.Configuration;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Runtime;
+    using System.ServiceModel.Description;
+    using System.Workflow.Runtime;
+    using System.Workflow.Runtime.Configuration;
+
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public class WorkflowRuntimeElement : BehaviorExtensionElement
+    {
+        const string cachedInstanceExpiration = "cachedInstanceExpiration";
+        const string commonParameters = "commonParameters";
+        const string enablePerfCounters = "enablePerformanceCounters";
+        const string name = "name";
+        const string services = "services";
+        const string validateOnCreate = "validateOnCreate";
+
+        ConfigurationPropertyCollection configProperties = null;
+
+        WorkflowRuntimeSection wrtSection = null;
+
+
+        public WorkflowRuntimeElement()
+        {
+
+        }
+
+        // This property is not supposed to be exposed in config. 
+        [SuppressMessage("Configuration", "Configuration102:ConfigurationPropertyAttributeRule", MessageId = "System.ServiceModel.Configuration.WorkflowRuntimeElement.BehaviorType")]
+        public override Type BehaviorType
+        {
+            get
+            {
+                return typeof(WorkflowRuntimeBehavior);
+            }
+        }
+
+        [ConfigurationProperty(cachedInstanceExpiration, IsRequired = false, DefaultValue = WorkflowRuntimeBehavior.DefaultCachedInstanceExpirationString)]
+        [TypeConverter(typeof(TimeSpanOrInfiniteConverter))]
+        [PositiveTimeSpanValidator]
+        public TimeSpan CachedInstanceExpiration
+        {
+            get
+            {
+                return (TimeSpan) base[cachedInstanceExpiration];
+            }
+            set
+            {
+                base[cachedInstanceExpiration] = value;
+            }
+        }
+
+        [ConfigurationProperty(commonParameters, DefaultValue = null)]
+        public NameValueConfigurationCollection CommonParameters
+        {
+            get
+            {
+                return (NameValueConfigurationCollection) base[commonParameters];
+            }
+        }
+
+        [ConfigurationProperty(enablePerfCounters, DefaultValue = true)]
+        public bool EnablePerformanceCounters
+        {
+            get
+            {
+                return (bool) base[enablePerfCounters];
+            }
+            set
+            {
+                base[enablePerfCounters] = value;
+            }
+        }
+
+
+        [ConfigurationProperty(name, DefaultValue = "")]
+        [StringValidator(MinLength = 0)]
+        public string Name
+        {
+            get
+            {
+                return (string) base[name];
+            }
+            set
+            {
+                base[name] = value;
+            }
+        }
+
+        [ConfigurationProperty(services, DefaultValue = null)]
+        public ExtendedWorkflowRuntimeServiceElementCollection Services
+        {
+            get
+            {
+                return (ExtendedWorkflowRuntimeServiceElementCollection) base[services];
+            }
+        }
+
+        [ConfigurationProperty(validateOnCreate, DefaultValue = WorkflowRuntimeBehavior.DefaultValidateOnCreate)]
+        public bool ValidateOnCreate
+        {
+            get
+            {
+                return (bool) base[validateOnCreate];
+            }
+            set
+            {
+                base[validateOnCreate] = value;
+            }
+        }
+
+        protected override ConfigurationPropertyCollection Properties
+        {
+            get
+            {
+                if (this.configProperties == null)
+                {
+                    this.configProperties = new ConfigurationPropertyCollection();
+                    configProperties.Add(new ConfigurationProperty(name, typeof(string), null));
+                    configProperties.Add(new ConfigurationProperty(validateOnCreate, typeof(bool), true));
+                    configProperties.Add(new ConfigurationProperty(enablePerfCounters, typeof(bool), true));
+                    configProperties.Add(new ConfigurationProperty(services, typeof(ExtendedWorkflowRuntimeServiceElementCollection), null));
+                    configProperties.Add(new ConfigurationProperty(commonParameters, typeof(NameValueConfigurationCollection), null));
+                    configProperties.Add(new ConfigurationProperty(cachedInstanceExpiration, typeof(TimeSpan), WorkflowRuntimeBehavior.DefaultCachedInstanceExpiration));
+                }
+
+                return this.configProperties;
+            }
+        }
+
+        protected internal override object CreateBehavior()
+        {
+            return new WorkflowRuntimeBehavior(new WorkflowRuntime(CreateWorkflowRuntimeSection()), this.CachedInstanceExpiration, this.ValidateOnCreate);
+        }
+
+        WorkflowRuntimeSection CreateWorkflowRuntimeSection()
+        {
+            if (wrtSection == null)
+            {
+                wrtSection = new WorkflowRuntimeSection();
+                wrtSection.Name = this.Name;
+                wrtSection.ValidateOnCreate = false;
+                wrtSection.EnablePerformanceCounters = this.EnablePerformanceCounters;
+
+                foreach (WorkflowRuntimeServiceElement wrtSvcElement in this.Services)
+                {
+                    wrtSection.Services.Add(wrtSvcElement);
+                }
+
+                foreach (NameValueConfigurationElement nameValueElement in this.CommonParameters)
+                {
+                    wrtSection.CommonParameters.Add(nameValueElement);
+                }
+            }
+            return wrtSection;
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Description/DescriptionCreator.cs

@@ -0,0 +1,75 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Description
+{
+    using System.Collections.Generic;
+    using System.Workflow.ComponentModel;
+    using System.Workflow.Runtime;
+
+    class DescriptionCreator
+    {
+        WorkflowDefinitionContext workflowDefinitionContext;
+
+        public DescriptionCreator(WorkflowDefinitionContext workflowDefinitionContext)
+        {
+            if (workflowDefinitionContext == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("workflowDefinitionContext");
+            }
+            this.workflowDefinitionContext = workflowDefinitionContext;
+        }
+
+        public ServiceDescription BuildServiceDescription(out IDictionary<string, ContractDescription> implementedContracts, out IList<Type> reflectedContracts)
+        {
+            ServiceDescriptionContext context = new ServiceDescriptionContext();
+
+            ServiceDescription description = new ServiceDescription();
+            ApplyBehaviors(description);
+
+            context.ServiceDescription = description;
+
+            Walker walker = new Walker(true);
+            walker.FoundActivity += delegate(Walker w, WalkerEventArgs args)
+            {
+                IServiceDescriptionBuilder activity = args.CurrentActivity as IServiceDescriptionBuilder;
+                if (activity == null)
+                {
+                    return;
+                }
+
+                activity.BuildServiceDescription(context);
+            };
+
+            walker.Walk(this.workflowDefinitionContext.GetWorkflowDefinition());
+
+            if (context.Contracts == null || context.Contracts.Count == 0)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR2.GetString(SR2.NoContract)));
+            }
+
+            implementedContracts = context.Contracts;
+            reflectedContracts = context.ReflectedContracts;
+            return description;
+        }
+
+        void ApplyBehaviors(ServiceDescription serviceDescription)
+        {
+            WorkflowServiceBehavior wsb = new WorkflowServiceBehavior(workflowDefinitionContext);
+            serviceDescription.Behaviors.Add(wsb);
+
+            if (wsb.Name != null)
+            {
+                serviceDescription.Name = wsb.Name;
+            }
+            if (wsb.Namespace != null)
+            {
+                serviceDescription.Namespace = wsb.Namespace;
+            }
+            if (wsb.ConfigurationName != null)
+            {
+                serviceDescription.ConfigurationName = wsb.ConfigurationName;
+            }
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Description/DurableOperationAttribute.cs

@@ -0,0 +1,149 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Description
+{
+    using System;
+    using System.ServiceModel.Dispatcher;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Administration;
+
+    [AttributeUsage(AttributeTargets.Method)]
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public sealed class DurableOperationAttribute : Attribute, IOperationBehavior, IWmiInstanceProvider
+    {
+        static DurableOperationAttribute defaultInstance = new DurableOperationAttribute();
+        bool canCreateInstance;
+        bool canCreateInstanceSetExplicitly;
+        bool completesInstance;
+
+        public DurableOperationAttribute()
+        {
+            this.completesInstance = false;
+        }
+
+        public bool CanCreateInstance
+        {
+            get
+            {
+                return this.canCreateInstance;
+            }
+            set
+            {
+                this.canCreateInstance = value;
+                this.canCreateInstanceSetExplicitly = true;
+            }
+        }
+
+        public bool CompletesInstance
+        {
+            get
+            {
+                return this.completesInstance;
+            }
+            set
+            {
+                this.completesInstance = value;
+            }
+        }
+
+        internal static DurableOperationAttribute DefaultInstance
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+
+        public void AddBindingParameters(
+            OperationDescription operationDescription,
+            BindingParameterCollection bindingParameters)
+        {
+            // empty
+        }
+
+        public void ApplyClientBehavior(OperationDescription operationDescription, ClientOperation clientOperation)
+        {
+            // empty
+        }
+
+        public void ApplyDispatchBehavior(
+            OperationDescription operationDescription,
+            DispatchOperation dispatchOperation)
+        {
+            if (dispatchOperation == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("dispatchOperation");
+            }
+
+            if (dispatchOperation.Invoker == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                    new InvalidOperationException(
+                    SR2.GetString(
+                    SR2.ExistingIOperationInvokerRequired,
+                    typeof(DurableOperationAttribute).Name)));
+            }
+
+            if (operationDescription == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("operationDescription");
+            }
+
+            if (operationDescription.DeclaringContract == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(
+                    "operationDescription",
+                    SR2.GetString(SR2.OperationDescriptionNeedsDeclaringContract));
+            }
+
+            bool canCreate = CanCreateInstanceForOperation(dispatchOperation.IsOneWay);
+
+            dispatchOperation.Invoker =
+                new ServiceOperationInvoker(
+                dispatchOperation.Invoker,
+                this.CompletesInstance,
+                canCreate,
+                operationDescription.DeclaringContract.SessionMode != SessionMode.NotAllowed);
+        }
+
+        void IWmiInstanceProvider.FillInstance(IWmiInstance wmiInstance)
+        {
+            wmiInstance.SetProperty("CanCreateInstance", this.CanCreateInstance);
+            wmiInstance.SetProperty("CompletesInstance", this.CompletesInstance);
+        }
+
+        string IWmiInstanceProvider.GetInstanceType()
+        {
+            return "DurableOperationAttribute";
+        }
+
+        public void Validate(OperationDescription operationDescription)
+        {
+            // empty
+        }
+
+        internal bool CanCreateInstanceForOperation(bool isOneWay)
+        {
+            bool canCreate = false;
+
+            if (this.canCreateInstanceSetExplicitly)
+            {
+                canCreate = this.canCreateInstance;
+            }
+            else
+            {
+                if (isOneWay)
+                {
+                    canCreate = false;
+                }
+                else
+                {
+                    canCreate = true;
+                }
+            }
+
+            return canCreate;
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Description/DurableServiceAttribute.cs

@@ -0,0 +1,352 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Description
+{
+    using System;
+    using System.Runtime;
+    using System.ServiceModel.Administration;
+    using System.ServiceModel.Channels;
+    using System.ServiceModel.Dispatcher;
+    using System.ServiceModel.Persistence;
+    using System.Xml;
+
+    [AttributeUsage(AttributeTargets.Class)]
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public sealed class DurableServiceAttribute : Attribute, IServiceBehavior, IContextSessionProvider, IWmiInstanceProvider
+    {
+        static DurableOperationAttribute defaultDurableOperationBehavior = new DurableOperationAttribute();
+        bool saveStateInOperationTransaction;
+        UnknownExceptionAction unknownExceptionAction;
+
+        public DurableServiceAttribute()
+        {
+            this.unknownExceptionAction = UnknownExceptionAction.TerminateInstance;
+        }
+
+        public bool SaveStateInOperationTransaction
+        {
+            get { return this.saveStateInOperationTransaction; }
+            set { this.saveStateInOperationTransaction = value; }
+        }
+
+        public UnknownExceptionAction UnknownExceptionAction
+        {
+            get
+            {
+                return this.unknownExceptionAction;
+            }
+            set
+            {
+                if (!UnknownExceptionActionHelper.IsDefined(value))
+                {
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value"));
+                }
+
+                this.unknownExceptionAction = value;
+            }
+        }
+
+        public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints, System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
+        {
+            // empty
+        }
+
+        public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
+        {
+            if (serviceDescription == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceDescription");
+            }
+
+            if (serviceHostBase == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceHostBase");
+            }
+
+            if (serviceDescription.Endpoints == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("serviceDescription", SR2.GetString(SR2.NoEndpoints));
+            }
+
+            PersistenceProviderBehavior providerBehavior = null;
+
+            if (serviceDescription.Behaviors != null)
+            {
+                providerBehavior = serviceDescription.Behaviors.Find<PersistenceProviderBehavior>();
+            }
+
+            if (providerBehavior == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                    new InvalidOperationException(
+                    SR2.GetString(
+                    SR2.NonNullPersistenceProviderRequired,
+                    typeof(PersistenceProvider).Name,
+                    typeof(DurableServiceAttribute).Name)));
+            }
+
+            if (providerBehavior.PersistenceProviderFactory == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                    new InvalidOperationException(
+                    SR2.GetString(
+                    SR2.NonNullPersistenceProviderRequired,
+                    typeof(PersistenceProvider).Name,
+                    typeof(DurableServiceAttribute).Name)));
+            }
+
+            providerBehavior.PersistenceProviderFactory.Open();
+            serviceHostBase.Closed += new EventHandler(
+                delegate(object sender, EventArgs args)
+            {
+                Fx.Assert(sender is ServiceHostBase, "The sender should be serviceHostBase.");
+                // We have no way of knowing whether the service host closed or aborted
+                // so we err on the side of abort for right now.
+                providerBehavior.PersistenceProviderFactory.Abort();
+            }
+                );
+
+            DurableInstanceContextProvider instanceContextProvider = new ServiceDurableInstanceContextProvider(
+                serviceHostBase,
+                false,
+                serviceDescription.ServiceType,
+                providerBehavior.PersistenceProviderFactory,
+                this.saveStateInOperationTransaction,
+                this.unknownExceptionAction,
+                new DurableRuntimeValidator(this.saveStateInOperationTransaction, this.unknownExceptionAction),
+                providerBehavior.PersistenceOperationTimeout);
+
+            DurableInstanceContextProvider singleCallInstanceContextProvider = null;
+
+            IInstanceProvider instanceProvider = new DurableInstanceProvider(instanceContextProvider);
+
+            bool includeExceptionDetails = false;
+
+            if (serviceDescription.Behaviors != null)
+            {
+                ServiceBehaviorAttribute serviceBehavior = serviceDescription.Behaviors.Find<ServiceBehaviorAttribute>();
+
+                if (serviceBehavior != null)
+                {
+                    includeExceptionDetails |= serviceBehavior.IncludeExceptionDetailInFaults;
+                }
+
+                ServiceDebugBehavior serviceDebugBehavior = serviceDescription.Behaviors.Find<ServiceDebugBehavior>();
+
+                if (serviceDebugBehavior != null)
+                {
+                    includeExceptionDetails |= serviceDebugBehavior.IncludeExceptionDetailInFaults;
+                }
+            }
+
+            IErrorHandler errorHandler = new ServiceErrorHandler(includeExceptionDetails);
+
+            foreach (ChannelDispatcherBase channelDispatcherBase in serviceHostBase.ChannelDispatchers)
+            {
+                ChannelDispatcher channelDispatcher = channelDispatcherBase as ChannelDispatcher;
+
+                if (channelDispatcher != null && channelDispatcher.HasApplicationEndpoints())
+                {
+                    if (this.unknownExceptionAction == UnknownExceptionAction.AbortInstance)
+                    {
+                        channelDispatcher.ErrorHandlers.Add(errorHandler);
+                    }
+
+                    foreach (EndpointDispatcher endpointDispatcher in channelDispatcher.Endpoints)
+                    {
+                        if (endpointDispatcher.IsSystemEndpoint)
+                        {
+                            continue;
+                        }
+                        ServiceEndpoint serviceEndPoint = serviceDescription.Endpoints.Find(new XmlQualifiedName(endpointDispatcher.ContractName, endpointDispatcher.ContractNamespace));
+
+                        if (serviceEndPoint != null)
+                        {
+                            if (serviceEndPoint.Contract.SessionMode != SessionMode.NotAllowed)
+                            {
+                                endpointDispatcher.DispatchRuntime.InstanceContextProvider = instanceContextProvider;
+                            }
+                            else
+                            {
+                                if (singleCallInstanceContextProvider == null)
+                                {
+                                    singleCallInstanceContextProvider = new ServiceDurableInstanceContextProvider(
+                                        serviceHostBase,
+                                        true,
+                                        serviceDescription.ServiceType,
+                                        providerBehavior.PersistenceProviderFactory,
+                                        this.saveStateInOperationTransaction,
+                                        this.unknownExceptionAction,
+                                        new DurableRuntimeValidator(this.saveStateInOperationTransaction, this.unknownExceptionAction),
+                                        providerBehavior.PersistenceOperationTimeout);
+                                }
+                                endpointDispatcher.DispatchRuntime.InstanceContextProvider = singleCallInstanceContextProvider;
+                            }
+                            endpointDispatcher.DispatchRuntime.MessageInspectors.Add(new DurableMessageDispatchInspector(serviceEndPoint.Contract.SessionMode));
+                            endpointDispatcher.DispatchRuntime.InstanceProvider = instanceProvider;
+                            WorkflowServiceBehavior.SetContractFilterToIncludeAllOperations(endpointDispatcher, serviceEndPoint.Contract);
+                        }
+                    }
+                }
+            }
+
+            foreach (ServiceEndpoint endpoint in serviceDescription.Endpoints)
+            {
+                if (!endpoint.InternalIsSystemEndpoint(serviceDescription))
+                {
+                    foreach (OperationDescription opDescription in endpoint.Contract.Operations)
+                    {
+                        if (!opDescription.Behaviors.Contains(typeof(DurableOperationAttribute)))
+                        {
+                            opDescription.Behaviors.Add(DurableOperationAttribute.DefaultInstance);
+                        }
+                    }
+                }
+            }
+        }
+
+        void IWmiInstanceProvider.FillInstance(IWmiInstance wmiInstance)
+        {
+            wmiInstance.SetProperty("SaveStateInOperationTransaction", this.saveStateInOperationTransaction);
+        }
+
+        string IWmiInstanceProvider.GetInstanceType()
+        {
+            return "DurableServiceAttribute";
+        }
+
+        public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
+        {
+            if (serviceDescription == null)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("serviceDescription");
+            }
+
+            ContextBindingElement.ValidateContextBindingElementOnAllEndpointsWithSessionfulContract(serviceDescription, this);
+
+            if (serviceDescription.Behaviors != null)
+            {
+                ServiceBehaviorAttribute serviceBehavior = serviceDescription.Behaviors.Find<ServiceBehaviorAttribute>();
+
+                if (serviceBehavior != null)
+                {
+                    if (serviceBehavior.InstanceContextMode != InstanceContextMode.PerSession)
+                    {
+                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                            new InvalidOperationException(
+                            SR2.GetString(SR2.InstanceContextModeMustBePerSession, serviceBehavior.InstanceContextMode)));
+                    }
+
+                    if (serviceBehavior.ConcurrencyMode == ConcurrencyMode.Multiple)
+                    {
+                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                            new InvalidOperationException(
+                            SR2.GetString(SR2.ConcurrencyMultipleNotSupported)));
+                    }
+
+                    if (serviceBehavior.ConcurrencyMode == ConcurrencyMode.Reentrant
+                        && this.UnknownExceptionAction == UnknownExceptionAction.AbortInstance)
+                    {
+                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                            new InvalidOperationException(
+                            SR2.GetString(SR2.ConcurrencyReentrantAndAbortNotSupported)));
+                    }
+                }
+            }
+
+            bool foundSessionfulContract = false;
+
+            foreach (ServiceEndpoint serviceEndpoint in serviceDescription.Endpoints)
+            {
+                if (serviceEndpoint != null && !serviceEndpoint.InternalIsSystemEndpoint(serviceDescription))
+                {
+                    if (serviceEndpoint.Contract.SessionMode != SessionMode.NotAllowed)
+                    {
+                        foundSessionfulContract = true;
+                    }
+
+                    foreach (OperationDescription operation in serviceEndpoint.Contract.Operations)
+                    {
+                        DurableOperationAttribute durableBehavior =
+                            operation.Behaviors.Find<DurableOperationAttribute>();
+
+                        if (durableBehavior == null)
+                        {
+                            durableBehavior = defaultDurableOperationBehavior;
+                        }
+
+                        if (serviceEndpoint.Contract.SessionMode == SessionMode.NotAllowed)
+                        {
+                            if (!durableBehavior.CanCreateInstanceForOperation(operation.IsOneWay))
+                            {
+                                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                                    new InvalidOperationException(
+                                    SR2.GetString(
+                                    SR2.CanCreateInstanceMustBeTrue,
+                                    serviceEndpoint.Contract.Name,
+                                    operation.Name)));
+                            }
+                        }
+                        else
+                        {
+                            if (operation.IsOneWay &&
+                                durableBehavior.CanCreateInstanceForOperation(operation.IsOneWay))
+                            {
+                                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                                    new InvalidOperationException(
+                                    SR2.GetString(
+                                    SR2.CanCreateInstanceMustBeTwoWay,
+                                    serviceEndpoint.Contract.Name,
+                                    serviceEndpoint.Contract.SessionMode,
+                                    operation.Name)));
+                            }
+                        }
+
+                        if (this.saveStateInOperationTransaction)
+                        {
+                            bool hasTransaction = false;
+
+                            OperationBehaviorAttribute operationBehavior = operation.Behaviors.Find<OperationBehaviorAttribute>();
+
+                            if (operationBehavior != null)
+                            {
+                                if (operationBehavior.TransactionScopeRequired)
+                                {
+                                    hasTransaction = true;
+                                }
+                            }
+
+                            TransactionFlowAttribute transactionBehavior = operation.Behaviors.Find<TransactionFlowAttribute>();
+
+                            if (transactionBehavior != null)
+                            {
+                                if (transactionBehavior.Transactions == TransactionFlowOption.Mandatory)
+                                {
+                                    hasTransaction = true;
+                                }
+                            }
+
+                            if (!hasTransaction)
+                            {
+                                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                                    new InvalidOperationException(
+                                    SR2.GetString(
+                                    SR2.SaveStateInTransactionValidationFailed,
+                                    operation.Name,
+                                    serviceEndpoint.ListenUri)));
+                            }
+                        }
+                    }
+                }
+            }
+
+            if (!foundSessionfulContract)
+            {
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                    new InvalidOperationException(
+                    SR2.GetString(SR2.SessionfulContractNotFound)));
+            }
+        }
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Description/IServiceDescriptionBuilder.cs

@@ -0,0 +1,13 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.ServiceModel.Description
+{
+    using System;
+
+    interface IServiceDescriptionBuilder
+    {
+        void BuildServiceDescription(ServiceDescriptionContext context);
+    }
+}

mcs/class/referencesource/System.WorkflowServices/System/ServiceModel/Description/PersistenceProviderBehavior.cs

@@ -0,0 +1,94 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+namespace System.ServiceModel.Description
+{
+    using System;
+    using System.Globalization;
+    using System.ServiceModel.Administration;
+    using System.ServiceModel.Persistence;
+
+    [Obsolete("The WF3 types are deprecated.  Instead, please use the new WF4 types from System.Activities.*")]
+    public class PersistenceProviderBehavior : IServiceBehavior, IWmiInstanceProvider
+    {
+        internal static readonly TimeSpan DefaultPersistenceOperationTimeout = TimeSpan.Parse(DefaultPersistenceOperationTimeoutString, CultureInfo.InvariantCulture);
+        // 30 seconds was chosen because it is the default timeout for SqlCommand
+        // (seemed like a reasonable reference point)
+        internal const string DefaultPersistenceOperationTimeoutString = "00:00:30";
+        TimeSpan persistenceOperationTimeout;
+
+        PersistenceProviderFactory persistenceProviderFactory;
+
+        public PersistenceProviderBehavior(PersistenceProviderFactory providerFactory)
+            : this(providerFactory, DefaultPersistenceOperationTimeout)
+        {
+            // empty
+        }
+
+        public PersistenceProviderBehavior(PersistenceProviderFactory providerFactory, TimeSpan persistenceOperationTimeout)
+        {
+            this.PersistenceProviderFactory = providerFactory;
+            this.PersistenceOperationTimeout = persistenceOperationTimeout;
+        }
+
+        public TimeSpan PersistenceOperationTimeout
+        {
+            get
+            {
+                return this.persistenceOperationTimeout;
+            }
+            set
+            {
+                if (value < TimeSpan.Zero)
+                {
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
+                        new ArgumentOutOfRangeException(SR2.GetString(SR2.PersistenceOperationTimeoutOutOfRange)));
+                }
+                this.persistenceOperationTimeout = value;
+            }
+        }
+
+        public PersistenceProviderFactory PersistenceProviderFactory
+        {
+            get
+            {
+                return this.persistenceProviderFactory;
+            }
+            set
+            {
+                if (value == null)
+                {
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value");
+                }
+                this.persistenceProviderFactory = value;
+            }
+        }
+
+
+        public virtual void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints, System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
+        {
+            // empty
+        }
+
+        public virtual void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
+        {
+            // empty
+        }
+
+        void IWmiInstanceProvider.FillInstance(IWmiInstance wmiInstance)
+        {
+            wmiInstance.SetProperty("PersistenceOperationTimeout", this.PersistenceOperationTimeout.ToString());
+            wmiInstance.SetProperty("PersistenceProviderFactoryType", this.PersistenceProviderFactory.GetType().FullName);
+        }
+
+        string IWmiInstanceProvider.GetInstanceType()
+        {
+            return "PersistenceProviderBehavior";
+        }
+
+        public virtual void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
+        {
+            // empty
+        }
+    }
+}