Why Does Starting a Server on the Default RTSP Port Fail when I Run the Windows 8 RTSPServer Demo?

Media Player on Windows 8 implements "Windows Media Player Network Sharing Service" which uses the default RTSP port that the RTSPServer demo will attempt to use. In such a situation, you have one of two options:

1. Stop the "Windows Media Player Network Sharing Service"

2. Start the RTSP server on a different port.