This library is licensed under GNU LESSER GENERAL PUBLIC LICENSE, Version 2.1. See license.txt for the complete text.
While the main source of documentation for Windows Media Format is Microsoft's MSDN, there are some documents specific to WMF .Net included with the library.
A retail build of the library containing all tested interfaces can be found in lib\ and the complete source code with definitions for all interfaces (tested and untested) can be found in src\*.*
MSDN Windows Media Format documentation.