Error 'Class already exists' when creating windows forms.

I

ITALstudio s.r.l.

Hy,

In my application I create instances of windows forms into different
AppDomain.


If I repeat 5 times the following sequence:

- Creating AppDomain;
- Creating instance of windows form into AppDomain;
- Closing the form;
- Unloading AppDomain;


I get this error:
Type: System.ComponentModel.Win32Exception
Messagge: Class already exists
Component: System.Windows.Forms
Class: System.Windows.Forms.NativeWindow+WindowClass
Method: RegisterClass

Has anyone experience with this error or have suggestions on the cause?


Thanks in advance.

Luigi Lucchi
Italstudio s.r.l.
 

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