DCOM - How to configure the client?

Hi,
I am trying to call a service on a remote server machine from a client
machine connect through TCP/IP. I have created a DLL and registered the DLL
at the server side. Launched DCOMCNFG and done the necessary settings at the
server side.

My question is at the client machine(s) side how will I specify where (which
machine) to look for this service? I don't want to copy the DLL to the client
machine even for any initial setup or registering.

What I know:
In a demo project's documentation I downloaded from microsoft website, they
use the same server service exe (that was an exe not a dll) to register the
service in client. Once we have done that we can use DCOMCNFG to specify
which computer we want to look for this service. But here we need to copy the
server exe to the client machine(s), I don't want to do that for the solution
I am looking for.

I greatly appreciate any help.

Thank you for your time.
-Kannan