>If you do it in an InProcess server it will cause major problems because you're changing the path of the host application which might (most likely will) screw it up.
>
Understood.

>In out of process servers it's just poor practice but I still wouldn't do it just for consistency. General rule: A COM object should never change the environment of its calling processes and if it does, always reset it upon return of any method calls.

This is what I'm currently doing ( resetting dir ), but will switch to SET PATH in the future.

Thanks for the info.