Description

If System.Management is used in the plugin, loaded by AssemblyLoadContext and call method will throw error System.PlatformNotSupportedException:"System.Management currently is only supported for Windows desktop applications."

Reproduction Steps

1. Using the Plug-in Example: https://github.com/dotnet/samples/tree/main/core/tutorials/Unloading.

2. Add CopyLocalLockFileAssemblies and PackageReference in the "Plugin" project .csproj:

  <PropertyGroup>
    <TargetFramework>net7.0</TargetFramework>
    <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="System.Management" Version="8.0.0" />
  </ItemGroup>

3. And add code in the GetMessage() method of the PluginClass:

ManagementObjectSearcher searcher = new ManagementObjectSearcher();

4. Add code in "Host" project after new HostAssemblyLoadContext:

var alc = new HostAssemblyLoadContext(assemblyPath);
alcWeakRef = new WeakReference(alc);

//load System.Management here:
alc.LoadFromAssemblyPath(Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), $"..\\..\\..\\..\\Plugin\\bin\\Debug\\net7.0\\System.Management.dll"));

5. rebuild "Plugin" project and run "Host" console.

Expected behavior

Normal code execution.

Actual behavior

Error when the code executes to ManagementObjectSearcher searcher = new ManagementObjectSearcher();:

System.PlatformNotSupportedException:"System.Management currently is only supported for Windows desktop applications."

Also, I found that once skip "step 4", it seems to execute properly.

But in practice I don't know which file in the folder will be the main dll, and I using System.Composition with ExportAttribute, so the path I pass to the AssemblyLoadContext constructor is the folder, like this:

//var alc = new HostAssemblyLoadContext(assemblyPath);
var alc = new HostAssemblyLoadContext(Path.GetDirectoryName(assemblyPath));

So it has to load more than one dll by alc.LoadFromAssemblyPath(), otherwise it will throw error:

System.IO.FileNotFoundException:"Could not load file or assembly 'System.Management, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'"

Overall System.Management doesn't look very compatible with context loading.

Regression?

No response

Known Workarounds

No response

Configuration

.NET 6/7/8 both like this.

Other information

No response