Hey, I am going through all my halo games again, but after I finished my Halo CE for the PC, I took my Halo 2 windows vista CD and installed it into my computer, but I am unable to play because I need the dumb code again, which I do not have because my mother went through and took every CD we own and placed them into a compact disc holder, while throwing away the cases. I've had the game for over a year, maybe two, is there any way I can get to the campaign and play that, not the multiplayer, idc about multiplayer. I can show proof the I have the CD (a pic and I can put a piece of paper in the picture with a certain number or letter to prove it is me), but I sadly do not have anything else after my mother cleaned everything out. I know no one cares about Halo 2 anymore, but I am just going through and playing them for my free time as a gift for finishing well in the quarterly test. It would stink if I cannot play it at all, I payed for it after all.