Are you scanning these files with your AV program before you open them? I hope so

.zip & exe are things to be very careful with, see this info on virus probs
http://www.gnutellaforums.com/showth...threadid=41432

Even if your .zip is clean, there's no guarantee it's going to work. Many games will need a CD or activation code to run. You're probably better off buying the game