I have a Windows 2008 R2 SP1 server that needs to be able to play audio and video, even stream A/V in a citrix environment. I've installed windows6.1-KB963697-x64 to add the Streaming Media Services role. I need assistance figuring out how to load the mmc that will allow me to change the port that Windows Media Services uses for HTTP Streaming. I've followed directions that don't really get me started because I can't get to a console or GUI that allows me to choose the server and change the port from the default (80). Port 80 is already in use on the Citrix server. Please guide me through the process of adding WMS and changing the default HTTP port for streaming.