Hi,
I can't send you a simple application with the same problem because i'm working in BlackBox mode so i really don't from where does the problem comes...
I can't find the value of WnDClass Property, there is no property like that in my MainMenu control, maybe you were talking about and other component ?
The name of the component is a MainMenu, more precisely in the section of Delphi's propertes, the ClassName is TMainMenu, same thing for VCLClass.
The language use to create the application is Delphi, IDE i'm not sure, i'll try to ask the developper.
Thanks for your help.