Hi, I am trying to debug a program (gensdatapro) I would like to get running with wine. For details see my bugreport at: http://bugs.winehq.org/show_bug.cgi?id=16320 >From reading the documentation it is clear to me the reported error should be caused by some library call just before the call to user32.MessageBoxA(). (there is just one call to this one in the logfile). However, I have no windows programming experience at all, so have no idea which function call is mis-behaving here. Last few calls before the message box are: KERNEL32.VirtualFree() KERNEL32.LocalFree() ntdll.RtlDeleteCriticalSection() oleaut32.VariantClear() ntdll.RtlUnwind() KERNEL32.VirtualQuery() However, as far as I can see these might all be related to handling the error, and not be the cause of the error. If anyone could point me to the actual cause of the error I would greatly appreciate it. best regards, Jos de Kloe