I apologize if these questions have been asked before. I searched the forums and could not find what I was looking for.

I have a program that is going to use an .exe that calls an activeX .dll. Both the .dll and the .exe were created in VB6. Right now, on my test box, I have the .exe shell to regsvr32.exe to register the .dll when the program starts, and unregister it when it ends.

Is there any disadvantage to doing it this way?

Am I filling up the registry with junk keys each time I register and unregister the .dll?

Also, do I have to use binary compatibility mode when I compile the .dll if I plan to make internal changes to the functions in future releases? By internal, I mean that I would not affect any public interfaces, just how the 'guts' of the functions work.

Thanks in advance for your help.

JH