This specification defines a protocol referred to as the Microsoft Media Server (MMS) Protocol. MMS streams multimedia from Windows Media Services to Windows Media Player or to another instance of Windows Media Services. MMS uses TCP and the User Datagram Protocol (UDP).
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. Sections 1.5 and 1.9 are also normative but cannot contain those terms. All other sections and examples in this specification are informative.