I know this isnt the right place to ask this qustion, but I figured someone could point me in the right direction of where to ask, because No where else I have found is any help. When I try to run cmd or regedit off my XP run line I get this error ...
CANNOT EXECUTE C:\WINDOWS\SYSTEM32\CMD.COM

Memory Allocation Error
Cannot load COMMAND, system haulted

Any help would be great and sorry for the off topic question.

I found the problem for all who care to know.... It was a virus from p2p filesharing. he virus created cmd.com and regedit.com in my system. I downloaded ad-aware which found them easy and removed them. Thanks everyone.