how to configure remote server

This is more of a setup problem than a c/c++ problem.

I have an ATL/COM Service that works ok as a service on my local machine. That is, I can access it ok when using CoCreateInstance() in another application that also runs on the same computer.

Now I want to move the service to another W2K Server computer and access it from my local machine. When using CoCreateInstance() I just change CLSCTX_LOCAL_SERVER to CLSCTX_REMOTE_SERVER. But that's not all that I need to do. Somehow I need to tell my local computer where that remote computer is (ip address probably) -- but how???

Check out the dcomcnfg.exe program - it should already be installed. This allows you to specify where objects should be created.
I think the idea is that your program does not need to know which computer is handling the service, it just needs to be able to create the object.