For some time many of you have been asking for Matrox MXO2 family of Video Input boxes (MXO2Mini, MXO2-LE, MXO2) as we Mojito Video Video Input, to work in the Windows OS as users have enjoyed their use on Macs.
MXO2 and live streaming support
http://www.matrox.com/video/en/products/mxo2_le/streaming/
and Mojito
http://www.matrox.com/video/en/products/mojito_max/streaming/
With the release of Matrox 7.2 drivers for Windows you now have support with Wirecast 4.2.2
Download drivers at Matrox's site
http://www.matrox.com/video/en/support/downloads/