libartnet is a library for transferring Artnet data over the network. Artnet data is used for 1) receiving DMX values send by lightning consoles or DMX software 2) sending DMX data ... x) transfer firmware and more ...
used in Artnet2MIDI, uDMXArtnet and most likely more applications.
libartnet-win32 is based on a former version of libartnet that was only for *nix systems. The actual version of libartnet:
http://code.google.com/p/linux-lighting/downloads/detail?name=libartnet-1.1.0.tar.gz