>Hello. We have a new machine XP Professional SP2 and am having problems registering dlls.

Alex,

I would use a utility like Dependency Walker, which would show you any file dependencies on the DLL and what functions it supports. On your second case, it sounds like that DLL does not support the DLLRegisterServer function and cannot be registered that way. You might want to check w/Rick Strahl on that one.

Laterness,
Jon