Never Reactivate After Reinstalling

If you ever have to reinstall Windows XP, you would normally have to reactivate it again with the Microsoft web site, but there is a way around this. Just go to 'C:\Windows\System32' and look for a file called 'wpa.dbl'. Copy this file to a floppy or CD-Rom. After reinstalling Windows XP, copy the wpa.dbl file back into the same folder as above and restart your computer.