Customer brought in a computer that, whenever you attempted to run a .exe file it would load the AOL desktop manager and not recognize the file, of course. I've had that happen before with spyware and was able to use .com programs to clean up the unit. This one says that it doesn't know what program to use to open a .com file. Ran AVG rescue Boot CD and it only found one minor spyware. Pulled hard drive to another machine as a secondary drive and ran Malwarebytes with again minor infections and still had the same problem. Tried to do a repair installation of XP "over the top" and get to the 34 minute left mark when "Windows cannot open this file File: rundll32.exe" error comes up. Any thoughts? or am I looking at wiping the system clean and starting over?