Shadowrun XP

Ok, so I got my SR original disc and the XP patch; however, I still can't install ShadowRun on XP because it keeps saying I got the wrong OS and it aborts...


there aren't any instructiong on the nfo or on any message boards for that effect, so can anyone please tell me how you got thru this barrier?

I'm thinking of changing the XP registry that has the OS version number (if I can figure out which one that is) which Shadowrun checks and perhaps I can fool the install to go thru, but I'm still trying to figure it out...

Any help anyone??