I have the Alien Trilogy demo that I want to install and play, but I am unsure of how to do this on my windows vista? From what I remember when I last tried to install it, I got a dos screen and a prompt. I am not knowledgeable in using dos and I don't know if it would even work through dos anyway. Is there a patch or an alternate demo version to be able to easily install and play this on vista? I originally downloaded it from Gamers Hell. I searched quite a bit and never found anything regarding this. If you have any help I'd appreciate it. Thanks.