The Microsoft Media Server (MMS) protocol is a proprietary
streaming media protocol developed by Microsoft for earlier
versions of Windows Media Services. You can use the MMS protocol
when delivering content as a
If the connection URL specified by the Player uses MMS (for
then the Player can use
If you want to force the server to use a specific protocol, you can identify the protocol to be used in the announcement file. The user can also specify the protocol in the content address (for example, mmsu://server_name/publishing_point_name/file_name). To facilitate protocol rollover, it is recommended that the URL use the generalized MMS protocol. That way, the Player can use either the MMSU or MMST protocols to connect to the stream. If the Player cannot connect to the stream successfully by using either of these protocols, it attempts to connect to the stream by using Hypertext Transfer Protocol (HTTP). For more information about protocol rollover, see How protocol rollover works.
Windows Media Services implements the MMS protocol through the WMS MMS Server Control Protocol plug-in. In a default installation of Windows Media Services, this plug-in is enabled and bound to TCP port 1755 and UDP port 1755.
[WMServer] LocalBindTcpPorts=1755 LocalBindUdpPorts=1755