My friend can't seem to get the installer to go for the download. He has tried to use winzip, but that doesn't seem to work either. He is trying to download the game on windows 8.1. He downloaded it, and when he tries to open the installer it attempts to try to find a program to open it with. Is there something his laptop is missing that needs to be installed? Any help would be great he really wants to play the game. Thank you.