Fix to Halo 2, windows 7 on GFWL

I have seen videos on youtube and looked on forums and I have been told theres a way to get around the windows vista and windows 7 delema for halo 2 I really just want to play the multiplayer, and I haven’t bought the game yet I want to learn to fix it before I buy it. I don’t want to have to go through all the crypt and file rewriting like some videos and forums had said to do so… can anyone really help me out you know maybe someone with experience.