Well ok, I'm running XP, SP2 and I've just managed it here. I mean you wouldn't be able to connect with version 2.3.0 (which is the one I tried it with) but that's to be expected as it wouldn't match the server version.
"Make love to me Snake! I want you!"
"Duude!"
"You're supposed to hit her"
"Damn right I'm gonna hit that!"
-Metal Gear Awesome