Try running the system file checker if you have folder called i386 on the hard disk
Run System File Checker *without* WinXP install CD? (branded PC has no WinXP CD) - TechSpot Troubleshooting
"you can still run this command without using the Windows XP CD. While running the "sfc /scannow" command if it prompts for the Windows XP CD for the path of the system files, please provide the following path:
This should resolve the issue."