I have a window service in .NET and would like to expose an object
(serverobj) for other .NET clients to call.  When the clients connects to
serverobj, I need the instance of the object provided by the window service
instances.  

I created a client and add a referenct to the service program, when invoking
the serverobj, it refers an instance of serverobj that is not in the process
space of the window service.

In unmanaged code, I would register the class factory for serverobj and have
the client code call CoCreateInstance on serverobj.

How do I make this happen is .NET (i.e., the serverobj served will be from
the window service instance)?

Thanks.