How to create own XP printer driver

Question

How would I create my own XP printer driver which will do the following:

• print to file (probably XPS format)
• put this file into a password protected Z

Answer 1

I found a good walkthrough while hunting for the same thing:

"Creating a Virtual Postscript Printer in Windows using Ghostscript"

http://www.stat.tamu.edu/~henrik/GSPSprinter/GSPSprinter.html

The output devices supported by ghostscript are here: http://pages.cs.wisc.edu/~ghost/doc/cvs/Devices.htm (PDF, Postscript, PNG etc).