Originally posted by Sam Hobbs
...perhaps a RPC would be easier. I know very little more about RPCs, except that COM uses the same MIDL type of langauge and such that is used for RPCs.
Service registration/unregistration at remote also uses RPC.

A sufficient obstacle for RPC (and DCOM as well) usage is that any its functionality(interface at least) should be registered, as far as I know, before it been used. Unfortunately I'm not experienced in RPC at all.