Hi Charlie,
Thanks for the response. I think everyone is misunderstanding my question. By user-friendly, I don't mean having a UI on the server, I mean my UI on the client app, that invokes the server. Passing messages as you say here is more what I'm talking about. So how is that done? If I have a method on the server object that is performing some function, how can I send (return?) a value to the client app, and then return again to the process?
Mark

>Out of process EXE's can't have any UI elements. However, you can pass messages from your DCOM server to a client application to increment a progress bar.