Special-case @file in FullyQualityPath to avoid situations like System.IO.IOException: The filename, directory name, or volume label syntax is incorrect. : 'D:\GitWorkspace\ILSpy\ILSpy.AddIn\bin\Debug\net472\@C:\Users\christophw\AppData\Local\Temp\tmp1E90.tmp'

ILSpy/ILSpy.csproj

@@ -66,7 +66,6 @@
     <EmbeddedResource Include="TextView\ILAsm-Mode.xshd" />
     <EmbeddedResource Include="TextView\Asm-Mode.xshd" />
     <EmbeddedResource Include="TextView\XML-Mode.xshd" />
-    <None Remove="Properties\launchSettings.json" />
   </ItemGroup>
 
   <ItemGroup>

ILSpy/SingleInstanceHandling.cs

@@ -64,10 +64,14 @@ namespace ICSharpCode.ILSpy
 		{
 			// Fully qualify the paths before passing them to another process,
 			// because that process might use a different current directory.
-			if (string.IsNullOrEmpty(argument) || argument[0] == '/')
+			if (string.IsNullOrEmpty(argument) || argument[0] == '-')
 				return argument;
 			try
 			{
+				if (argument.StartsWith("@"))
+				{
+					return "@" + FullyQualifyPath(argument.Substring(1));
+				}
 				return Path.Combine(Environment.CurrentDirectory, argument);
 			}
 			catch (ArgumentException)

publishlocaldev.ps1

@@ -1,7 +1,13 @@
-# For local development of the VSIX package - build and publish the x64 build only
+# For local development of the VSIX package - build and publish (VS2022 also needs arm64)
 
 $output_x64 = "./ILSpy/bin/Debug/net8.0-windows/win-x64/publish/fwdependent"
 
 dotnet publish ./ILSpy/ILSpy.csproj -c Debug --no-restore --no-self-contained -r win-x64 -o $output_x64
 dotnet publish ./ILSpy.ReadyToRun/ILSpy.ReadyToRun.csproj -c Debug --no-restore --no-self-contained -r win-x64 -o $output_x64
 dotnet publish ./ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj -c Debug --no-restore --no-self-contained -r win-x64 -o $output_x64
+
+$output_arm64 = "./ILSpy/bin/Debug/net8.0-windows/win-arm64/publish/fwdependent"
+
+dotnet publish ./ILSpy/ILSpy.csproj -c Debug --no-restore --no-self-contained -r win-arm64 -o $output_arm64
+dotnet publish ./ILSpy.ReadyToRun/ILSpy.ReadyToRun.csproj -c Debug --no-restore --no-self-contained -r win-arm64 -o $output_arm64
+dotnet publish ./ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj -c Debug --no-restore --no-self-contained -r win-arm64 -o $output_arm64