Hello,

I have a COM AddIn written in C# that I compiled and built on a Windows 2000
/ Office 2000 machine.

Now, after installing it on a Windows XP / Office XP machine, when the
application tries to register a delegate for the Explorer 'Close' event, I
receive the following error:

Method not found:  Void
Outlook.ExplorerClass.add_Close(Outlook.ExplorerEvents_CloseEventHandler).

Because some methods are named differently across the different versions of
Office, this raises the following question:

Do I need to create separate builds for each version of Office Suite?

Regards,

TC