Being in the IT world I occasionally have the need to get my way past a password for a workstation or whatnot, occasionally people forget their passwords, etc. For XP it was easy most of the time to just reboot, push F5 and load in safe mode. This would usually show the Administrator login and allow you to slip in behind the non password-protected master admin account. Then you could just reset the user’s password and login as them or do whatever you had to do through the administration account unnoticed.