Make ZuneHost report errors on old systems

ZuneHost/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <configuration>
     <startup useLegacyV2RuntimeActivationPolicy="true">
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" />
     </startup>
 </configuration>

ZuneHost/Program.cs

@@ -1,5 +1,7 @@
 using System;
+using System.Diagnostics;
 using System.IO;
+using System.Linq;
 using System.Threading;
 
 namespace ZuneHost
@@ -13,6 +15,12 @@ namespace ZuneHost
         {
             string strArgs = string.Join(" ", args);
 
+#if NETFRAMEWORK
+            Console.WriteLine("Running legacy build on .NET Framework. If your OS supports .NET Core, please use OpenZune.");
+#endif
+
+            if (args.Contains("--copyFiles", StringComparer.InvariantCultureIgnoreCase))
+            {
                 // Make sure that ZuneDBApi can find all the Zune native libraries
                 Console.WriteLine("Copying Zune files...");
                 _zuneProgramDir = new(Path.Combine(
@@ -38,11 +46,27 @@ namespace ZuneHost
                         }
                     }
                 }
+            }
 
             Console.WriteLine("Starting Zune...");
 
+            try
+            {
                 return Microsoft.Zune.Shell.ZuneApplication.Launch(strArgs, IntPtr.Zero);
             }
+            catch (FileNotFoundException ex)
+            {
+                Console.WriteLine(ex.FileName);
+                throw;
+            }
+            catch
+            {
+                Debugger.Launch();
+                Debugger.Break();
+
+                throw;
+            }
+        }
 
         public static void CopyAll(DirectoryInfo source, DirectoryInfo target)
         {

ZuneHost/ZuneHost.csproj

@@ -2,11 +2,17 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
-        <TargetFrameworks>net6.0-windows10.0.22000;net6.0;net40</TargetFrameworks>
+		<TargetFrameworks>net40;net6.0-windows10.0.22000;net6.0;</TargetFrameworks>
 		<Platforms>AnyCPU;x64;x86;ARM32</Platforms>
 		<LangVersion>11.0</LangVersion>
 	</PropertyGroup>
 
+	<ItemGroup>
+		<Compile Remove="build\**" />
+		<EmbeddedResource Remove="build\**" />
+		<None Remove="build\**" />
+	</ItemGroup>
+
 	<ItemGroup>
 		<ProjectReference Include="..\ZuneShell\ZuneShell.csproj" />
 	</ItemGroup>