diff --git a/ZuneImpl/Service/CommunityCommerce.cs b/ZuneImpl/Service/CommunityCommerce.cs
index a6ab1f8..65fad94 100644
--- a/ZuneImpl/Service/CommunityCommerce.cs
+++ b/ZuneImpl/Service/CommunityCommerce.cs
@@ -23,7 +23,7 @@ namespace Microsoft.Zune.Service
             }
         }
 
-        public static CultureInfo Culture { get; private set; }
+        public static CultureInfo Culture { get; private set; } = CultureInfo.CurrentCulture;
 
         public static bool IsSignedIn => Escargot.HasToken && MemberInfo != null;
 
diff --git a/ZuneImpl/Service/CommunityCommerce.oz.cs b/ZuneImpl/Service/CommunityCommerce.oz.cs
index 8705558..836ccbb 100644
--- a/ZuneImpl/Service/CommunityCommerce.oz.cs
+++ b/ZuneImpl/Service/CommunityCommerce.oz.cs
@@ -1,9 +1,6 @@
 #if OPENZUNE
 
-using System.IO;
 using System.Net.Http;
-using System.Xml.Serialization;
-using Zune.Xml.Commerce;
 using ZuneUI;
 
 namespace Microsoft.Zune.Service
@@ -19,8 +16,9 @@ namespace Microsoft.Zune.Service
 
             try
             {
-                HttpRequestMessage request = new(HttpMethod.Post, "https://commerce.zunes.me/v5.0/en-US/account/signin");
-                request.Headers.UserAgent.ParseAdd("Zune/5.0");
+                string url = Service2.Instance.GetEndPointUri(EServiceEndpointId.SEID_Commerce) + $"/account/signin";
+                HttpRequestMessage request = new(HttpMethod.Post, url);
+                request.Headers.UserAgent.ParseAdd(CommunityService.AppUserAgent);
 
                 var contentStream = GetSignInRequestBody();
                 request.Content = new StreamContent(contentStream);
diff --git a/ZuneImpl/Service/CommunityService.cs b/ZuneImpl/Service/CommunityService.cs
index 1741012..7e63e05 100644
--- a/ZuneImpl/Service/CommunityService.cs
+++ b/ZuneImpl/Service/CommunityService.cs
@@ -12,6 +12,9 @@ namespace Microsoft.Zune.Service
     {
         private bool disposedValue;
 
+        public static string AppUserAgent { get; set; }
+        public static string ApiVerionStr { get; set; }
+
         public EListType ContentTypeToListType(EContentType contentType)
         {
             switch (contentType)
@@ -411,7 +414,16 @@ namespace Microsoft.Zune.Service
         public bool LaunchBrowserForExternalUrl(string strUrl, EPassportPolicyId ePassportPolicy)
             => Service.Instance.LaunchBrowserForExternalUrl(strUrl, ePassportPolicy);
 
-        public int Phase3Initialize() => Service.Instance.Phase3Initialize();
+        public int Phase3Initialize()
+        {
+            var name = System.Reflection.Assembly.GetEntryAssembly()?.GetName();
+            if (ApiVerionStr == null)
+                ApiVerionStr = name?.Version?.ToString(2);
+            if (AppUserAgent == null)
+                AppUserAgent = $"{name?.Name}/{ApiVerionStr}";
+
+            return Service.Instance.Phase3Initialize();
+        }
 
         public bool PostAppReview(Guid mediaId, string title, string comment, int rating, AsyncCompleteHandler callback)
             => Service.Instance.PostAppReview(mediaId, title, comment, rating, callback);
diff --git a/ZuneImpl/ZuneImpl.csproj b/ZuneImpl/ZuneImpl.csproj
index b92d4fe..431e226 100644
--- a/ZuneImpl/ZuneImpl.csproj
+++ b/ZuneImpl/ZuneImpl.csproj
@@ -5,7 +5,7 @@
         <Platform Condition=" '$(Platform)' == '' ">x64</Platform>
         <OutputType>Library</OutputType>
         <AssemblyName>ZuneImpl</AssemblyName>
-        <ApplicationVersion>4.7.0.0</ApplicationVersion>
+        <ApplicationVersion>4.8.0.0</ApplicationVersion>
 
         <TargetFrameworks>net35;net40;net6.0</TargetFrameworks>
         <Platforms>x64;x86</Platforms>
diff --git a/ZuneShell/Microsoft/Zune/Shell/ZuneApplication.cs b/ZuneShell/Microsoft/Zune/Shell/ZuneApplication.cs
index 78dd0c8..bdf8a39 100644
--- a/ZuneShell/Microsoft/Zune/Shell/ZuneApplication.cs
+++ b/ZuneShell/Microsoft/Zune/Shell/ZuneApplication.cs
@@ -108,7 +108,7 @@ namespace Microsoft.Zune.Shell
             else
             {
                 SingletonModelItem<WindowSnapSimulator>.Instance.Phase3Init();
-                Service.Phase3Initialize();
+                Service2.Phase3Initialize();
                 SignIn.Instance.Phase3Init();
                 MetadataNotifications.Instance.Phase2Init();
                 SingletonModelItem<UIDeviceList>.Instance.Phase2Init();