|Chapter 20 - Ten XSLT Processors Available Online|
|XSLT For Dummies|
|by Richard Wagner|
|Hungry Minds 2002|
Sablotron is a W3C-compliant processor that runs on multiple platforms, including Windows, Linux, FreeBSD, and more. Sablotron has a rich library of XSLT extensions.
Available as a Windows executable.
Technical Stuff Sablotron is available as an Open Source project as well, so you have the option of downloading its C++ source code.