Easily and completely remove the Microsoft XPS doc writer
Most of them have no idea what it is or how it got added to their list of printers. To avoid phone calls from people saying things like "I thought you sold me an HP," I usually just click the icon, press delete, and go about my business.
Admittedly, that's not the most thorough way to get rid of a printer. To do a more complete job, download Rogosoft's Removal Tool. Not only will it delete the printer, but it also removes the driver, XPS library and Essentials Pack, and cleans up any package files that are left behind.
It's 32 and 64 bit compatible, and works on both XP and Vista. It's also fully portable, and free.