Microsoft Shared Computer Toolkit for Windows XP. On a phone call with Doug Spindler of Pacific IT Professionals, he mentioned this free tool from Microsoft which might interest educational technology coordinators and IT folks in schools:
Introducing powerful new software tools for shared computers in schools, libraries, Internet cafes, and other public places. The Shared Computer Toolkit helps make it easy to set up, safeguard, and manage reliable shared computers running genuine Windows XP. Read more.
This is like a free version of Deep Freeze.