I am trying to play Call of duty 2 from an iso image I downloaded. I do not know what kind of copy protection it has. I have successfully mounted the image to my virtual drive. When I ran it the first time, it installed the game, but when I try to play it it asks me to insert the dvd. I have read the forums and all I can find is suggestions to mount it to the virtual drive. I have done this and it still doesn't work. I have had the same problem with Far Cry when I tried to run that game also. Do I need to do something special when I install the game?