System.Management fails at runtime on Win10/ARM64

[austinkinross]

Code like this compiles for Win10/ARM64 with .NET 6.0 RC1:

static string GetCommandLine(Process process)
{
    using (ManagementObjectSearcher searcher = new ManagementObjectSearcher($"SELECT CommandLine FROM Win32_Process WHERE ProcessId = {process.Id}"))
    using (ManagementObjectCollection objects = searcher.Get())
    {
        return objects.Cast<ManagementBaseObject>().SingleOrDefault()?["CommandLine"]?.ToString();
    }
}

But it doesn't actually work at runtime:

System.PlatformNotSupportedException: Could not find an installation of .NET Framework v4.0.30319. System.Management requires native modules from the .NET Framework to operate.
   at System.Management.ThreadDispatch.Start()
   at System.Management.ManagementScope.Initialize()
   at System.Management.ManagementObjectSearcher.Initialize()
   at System.Management.ManagementObjectSearcher.Get()

It would have been nice if either:

1. This code worked as-is on ARM64
2. OR the compiler would give me a compile-time error.

As-is, this was a nasty surprise late in development while porting my x64 app to ARM64.

[Nuklon]

Sadly this is due to #45143
I wish that would be reopened, the linked https://www.nuget.org/packages/Microsoft.Management.Infrastructure/ hasn't been updated since 2019 and has several issues such as also requiring .NET Framework.

Also with W11 no longer shipping wmic tool there are not a lot of alternative options left.

[danmoseley]

@daxian-dbw does the PowerShell team now own the WMI/MMI space? What API should a .NET app use today for management?

[SimonCropp]

@Nuklon isnt the nuget in question System.Management: https://www.nuget.org/packages/System.Management/ ? which is actively maintained

[ViktorHofer]

Closing as dupe of #81400 which has more information.