█▄█ ▀█▄ █
This is one heck of a concept, I am going to test this on my image when I get home.
Although this will work in Vista, this article claims to work in Windows 2000 and above as well
An alternative to running as limited user is to instead run only specific Internet-facing applications as a limited user that are at greater risk of compromise, such as IE and Outlook. Microsoft promises this capability in Windows Vista with Protected-Mode IE and User Account Control (UAC), but you can achieve a form of this today on Windows 2000 and higher with the new limited user execution features of Process Explorer and PsExec.