Do you mean the installation on your hard disk ? Or does the install ask for the original MOH cd ? I'm going to assume the first one. Have you ever used cracks of any kind ? I assume that the patching process wants an original executable. It could also be that you either haven't updated the original MOH install far enough, OR you updated and the patching program requires the original cd version. Either way, the only advise I can give is to try a complete reinstall, without patching the MOH install and then try to install spearhead. If you already tried this, I'm stumped. Maybe you have two different versions of MOHAA and spearhead ? one american, one uk ? Try to give me as much details as possible and we'll get to the bottom of this. I'd hate you missing out on the extra 3 hours of single player that Spearhead provides