Microsoft's streaming server Microsoft Media Services (previously called NetShow Services) uses the Microsoft Media Server (MMS) protocol to transfer unicast data. MMS can be transported via UDP or TCP. The MMS default port is UDP/TCP 1755.Microsoft deprecated MMS in favor of RTSP in 2003 with the release of the Windows Media Services 9 Series, but continued to support the MMS for some time in the interest of backwards compatibility. Support for the protocol was finally dropped in Windows Media Player 11 and Windows Media Services 2008.
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