Why some conputer run AOT exe show error dialog，but others not？

[newcoder7777]

my computer show error dialog like this,but my another computer not

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NotSupportedException: COM Interop requires ComWrapper instance registered for marshalling.
at System.Runtime.InteropServices.ComWrappers.ComObjectForInterface(IntPtr) + 0x59
at System.Windows.Forms.UnsafeNativeMethods.CreateStdAccessibleObject(HandleRef, Int32, Guid&, Object&) + 0xbb
at System.Windows.Forms.AccessibleObject.UseStdAccessibleObjects(IntPtr, Int32) + 0x4a
at System.Windows.Forms.ButtonBase.ButtonBaseAccessibleObject..ctor(Control) + 0x35
at System.Windows.Forms.Button.CreateAccessibilityInstance() + 0x23
at System.Windows.Forms.Control.get_AccessibilityObject() + 0x60
at System.Windows.Forms.Control.GetAccessibilityObject(Int32 accObjId) + 0x14
at System.Windows.Forms.Control.WmGetObject(Message& m) + 0x84
at System.Windows.Forms.Control.WndProc(Message& m) + 0x141
at System.Windows.Forms.ButtonBase.WndProc(Message& m) + 0x17d
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Interop.User32.WM msg, IntPtr wparam, IntPtr lparam) + 0x70

[kant2002]

I belive you miss call to ComWrappers.RegisterForMarshalling(WinFormsComInterop.WinFormsComWrappers.Instance); which make WinForms works. Like it done here.

WinFormsComInterop/samples/SampleWindowsForms/Program.cs

Line 16 in b0bc9cf

ComWrappers.RegisterForMarshalling(WinFormsComInterop.WinFormsComWrappers.Instance);

[kant2002]

Other option is that you have some IME tools or other apps which provide accessibility service. Any ideas what can it be?

[newcoder7777]

Thanks for your replay, I know need add ComWrappers.RegisterForMarshalling(WinFormsComInterop.WinFormsComWrappers.Instance);

But I want to know, why not add this code, after publish, some conputer run AOT exe show error dialog，but others not

Another question : I add richTextBox to my Form, then Vistual Studio show error dialog : Built-in COM has been disabled via a feature switch. See https://aka.ms/dotnet-illink/com for more information. Although, I still can publish my program

[newcoder7777]

Another Question： I found you publish WinFormsComInterop.SourceGenerator in NUGET
But no readme for WinFormsComInterop.SourceGenerator to let us know what is it and How to use it.
Sorry, my language is not English , I used translate software

[newcoder7777]

Another Question: Is it AOT not support System.Management ?

If I not open AOT, that code return true. But when I use AOP , and add myClss in rd.xml， still return false

public static bool IsWmiServiceOpen()
{
try
{
ServiceController controller = new ServiceController("winmgmt");
if (controller.Status != ServiceControllerStatus.Running)
return false;
}
catch
{
return false;
}

        try
        {
            ManagementClass mc = new ManagementClass("Win32_Service");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                if (mo["Name"].ToString().ToLower() == "winmgmt")
                    return (mo["Started"].ToString().ToLower() == "true");
            }
            return false;
        }
        catch
        {
            return false;
        }
    }

[kant2002]

There no support for System.Management and currently it is very complicated to implement. I did take a look at it, but give up. WMI uses a lot of abstractions, so I cannot create fixed proxy. Unfortunately.

[newcoder7777]

System.Management

Thank you very much . One Question, Is rd.xml could be generate automatic ? I don't know the WinFormsComInterop.SourceGenerator is do for that ?

[NCLnclNCL]

Another Question: Is it AOT not support System.Management ?

If I not open AOT, that code return true. But when I use AOP , and add myClss in rd.xml， still return false

public static bool IsWmiServiceOpen() { try { ServiceController controller = new ServiceController("winmgmt"); if (controller.Status != ServiceControllerStatus.Running) return false; } catch { return false; }

        try
        {
            ManagementClass mc = new ManagementClass("Win32_Service");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                if (mo["Name"].ToString().ToLower() == "winmgmt")
                    return (mo["Started"].ToString().ToLower() == "true");
            }
            return false;
        }
        catch
        {
            return false;
        }
    }

i think you can using command line to get it