Tinkering with Bart’s PE
Bart’s PE Builder helps you build a "BartPE" (Bart Preinstalled Environment) bootable Windows CD-Rom or DVD from the original Windows XP or Windows Server 2003 installation/setup CD, very suitable for PC maintenance tasks.
There is also a new set of tools, that’ll allow you to run PE from a USB memory key. That way, you can run your favorite apps and use it as a rescue disk or your personal toolbox. Also, there is latest attempts (and success stories) on running XP on USB drives (even though MS denies its possibility). Now that’s