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Why can't I create a Form in a com-object?

I'm trying to create and display a Form in an inproc COM server using
C# and it is locking up. It's intermittent, but happens more often
than not.

The following code demonstrates the problem - the Form is

Can anyone explain why this is happening?

using System.Windows.Forms;
using System.Reflection;
using System.Runtime.InteropServices;

[assembly: AssemblyDescription("TestComServerLockup 1.0 Type
[assembly: AssemblyVersion("")]
[assembly: Guid("431F88DF-A2B4-4669-841B-ED2A2316676A")]

public interface ITestComServerLockup {
[DispId(1)] void LockUp();

public class TestComServerLockup : ITestComServerLockup {
public void LockUp() {
Form f = new Form();
f.Name = "Test Form";
f.Text = "Test Form";

To build:
csc /target:library /r:System.Windows.Forms.dll TestComServerLockup.cs
regasm TestComServerLockup.dll /codebase

I'm testing it with python + win32 extentions. C++ clients exhibit
the same behavior.
python -c "from win32com.client import Dispatch;
Sep 10 '08 #1
0 825

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