This feature is in Windows server 2008 R2 has been replaced by Streaming Media Services role, so this button has disappeared in Windows Media Player 12.
The Streaming Media Services role is not included in the Windows Server 2008 R2 operating system. This role includes the latest version of Microsoft Windows Media
Services, Windows Media Services 2008 for Windows Server 2008 R2.
You can download the Microsoft Update Standalone Package (MSU) file installs the latest version of Windows Media Services for the Windows Server 2008 R2 operating
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