Halo On Windows Vista

I can play in almost any multiplayer server, whenever I try to access one, I get that they are using another version, my game is updated with the latest patch, and I wonder if there are any patch to play multiplayer!?

thanks for reading, I expect an answer :)

friend i have this problem too. i need help because i want to play online now please if you can play tell me how relise ? ok i wait you answer ..............