Using GPEdit to lock down a local account on Windows XP

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http://serverfault.com – I have a few local accounts on a Windows XP machine. The local account is called localUser1 ... localUser16 I need to lock the accounts down so the ONLY application that is allowed to run is Notepad.exe All domain accounts, local Admin accounts should be unaffected. Is this possible? If so then how to execute it? (HowTos)