What exactly needs to be done to run more than one server on the same PC?

[Aerys]

Anyone who has, I would greatly appreciate some detailed commentary.

[Number1]

hmm well geta good dedicated server runner

and just changed the port i think, that is what the games uses to connect to a ip, all i can say really apart from jediknightrunner lets u choose the port

[MatrixCPA]

I cleaned out jk2mpconfig.cfg and made it read only. When I say "cleaned out", I mean that I removed all the settings that would generally be used in a server.cfg--I didn't remove every line. Then I copied my startup shortcut from the first one and changed the port number. Last, I created another config and set it up for the server type I wanted.