web service to existing process

[Mike]

I can create a web-service via the wizards fine.
(1) I'd like to create a web service that are entry-points into an existing
(already running) program/process. (The process may have been created by IIS
earlier, or may have to started by other means.) Other than the usual
concurrency issues, is this easy/reasonable to do? The only other option
would be to use yet another IPC mechanism (local remoting, etc.) to talk
between the late-spawned web service and my running application, right?
(2) How do I get the IDE to do all the nice things it does when I create a
web services project, such as upload files to IIS?

thanks