Change Class name + GUID in Com object

How can I change the class name of a Visual C++ Com object.
I need to change from Testcom.atlobject.1 to Testcom.atlobject_2

How can I also change the GUID for the class and object

Thanks

Rob

I beleive all this is done prior to compling ... I know the GUID is normally set in the code and so I am presuming the object name is as well ... you may want to ask on a C++ forum.

Billy