i Was have this Problem about 3 days ago (Error cannot find file needed for patch). and i sent my problem to the Support TEAM and they reply me and give me a steps to do it and when i read it all i choosed a one of them to make it You should provide or make "exceptions" (put CrossFire in the list of safe programs) "Firewall List" so that the game can pass through any security settings you may have enabled ) and i make another step ( close down my Anti Virus ) untill the patch is finished and it worked with me now i play it i searched more and more to found this little sulation so try it and tell me ^_^ Notes: i'm using Win XP