4.1 Product Behavior

<1> Section 2.1.5: The cache/proxy server role is supported only by Windows Server 2008 operating system and Windows Server 2008 R2 operating system.

<2> Section 2.5.1: UDP encapsulation mode is used only for transmitting packets to an IPv4 multicast group. The IP multicast is supported only by Windows Media Services implementations in Windows NT 4.0 operating system and Windows 2000 Server operating system.

<3> Section 2.6:  The media server role of member protocols is shipped in Windows 2000 Server, Windows 2000 Advanced Server operating system, Windows Server 2003 operating system, Windows Server 2003 R2 operating system, Windows Server 2008, and Windows Server 2008 R2.