I recently swapped over to windows 7 and would like to install warcraft 3 again. The problem is i lost my cds, but not the case with the keys on it. I tried copying over the game folder from xp but I get an error about writing files to my hard drive when I try to go on battle.net. Then I downloaded a torrent of the game and got the same problem, what can I do to fix it without a fresh install because I have no cds.