Hi,

I'm not familiar with the COM component you mentioned, also I don't know
how to test it on my side; but first let's make sure how to handle COM
events in .NET:

#COM Events
http://msdn2.microsoft.com/en-us/library/1hee64c7(VS.71).aspx

#Handling Events Raised by a COM Source
http://msdn2.microsoft.com/en-us/library/66ahbe6y(VS.71).aspx

#How to establish a COM event sink in the .NET Framework with return values
by using Visual C# .NET or Visual C# 2005
http://support.microsoft.com/kb/811645

#How to establish a COM event sink with return values in the .NET Framework
by using Visual Basic .NET or Visual Basic 2005
http://support.microsoft.com/kb/810228

#How to handle PowerPoint 2002 events by using Visual Basic .NET 2002
http://support.microsoft.com/kb/308330

If you could help me on how to reproduce the issue on my side, I can
further troubleshoot this issue on my side. Thanks.

Sincerely,
Walter Wang (wawang@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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