The primary documentation is currently on codeproject:

Last edited Nov 1, 2009 at 9:31 PM by jkalmbach, version 1


xinaesth Aug 8, 2011 at 9:49 AM 
Indeed, I found this project via and it was only because I was idly reading through the comments on codeproject that I realised there was a more up to date version here. I've added a comment pointing here to the stackoverflow answer FWIW.