Microsoft Media Services

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Microsoft Media Services was Microsoft's proprietary network streaming protocol used to transfer unicast data in Windows Media Services (previously called NetShow Services). 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 Services 2008[1].

Note however that Microsoft still recommends[2] using "mms://" as a "protocol rollover[3] URL". As part of protocol rollover a Windows Media Player 11 client opening an "mms://" URL will attempt to connect first with RTSP over UDP and if that fails it will attempt RTSP over TCP. Earlier Windows Media Player clients as well as version 11 after having failed RTSP will attempt MMS over UDP, then MMS over TCP. If MMS failed a modified version of a HTTP over TCP connection will be attempted, this modified version is referred to as MMSH[4].

Contents

[edit] Programs supporting MMS

[edit] See also

[edit] References

  1. ^ Microsoft's Windows Media Networking Protocols Porting Kit
  2. ^ Microsoft's Windows Media Networking Protocols Porting Kit
  3. ^ Microsoft's Windows Media Format 11 SDK Protocol Rollover
  4. ^ MMSH - VideoLAN Wiki

[edit] External links

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