You might try completely deactivating it. By which I mean end any related process in the task manager, and stopping related processes in the Services list in the Control Panel.
After all, if it isn't running at all, you shouldn't have a problem.
EDIT: You HAVE tried adding the server's port to the exception list in your firewall, right? That and the typical DirectX Game ports? I think they are like 2303 and 2304? Or maybe 2302 and 2303? Hell I can't remember, just try adding 2300 through 2304.
EDIT's EDIT: Yea its 2302 and 2303 usually.
While being quite funny, your sig was the biggest one i've ever seen so far. No more than 700x250 please. ~utrack http://pastebin.com/SYQXBufs