An Airplay target in C#. Supports photos, videos and audio and includes a plugin for the open source media centre MediaPortal (http://www.team-mediaportal.com).
Apple's Bonjour service needs to be installed.
The RSA key is not included in the source, if you want to compile the project you will need to find and add the key yourself.
The Airtunes source is based on the original Shairport code by James Laird which can be found at http://github.com/abrasive/shairport.
The ALAC decoder is based on David Hammerton's implementation.