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Disable sound in RDP not working in Windows Terminal Services

OK, the same bug was in Windows 2003sp1 terminal server, MS fixed it in SP 2.
The problem is that even after you disable sound redirection via GPO you still got beeps on error messages.

I found a way to fix it.

• Click Start, click Run, type regedit, and then click OK.
• Locate and edit  the following registry subkey:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Terminal Server
• On the Edit menu, point to New, and then click DWORD Value.
• Type DisableBeep, and then press ENTER.
• Right-click DisableBeep, and then click Modify.
• In the Value data box, type 1, and then click OK
• Quit Registry Editor.
• Click Start, click Run, type services.msc and hit enter button.
• Locate Terminal Services service and press restart (That will drop all users connected to TS server)
• Reconnect to terminal server

Note You can disable the MessageBeep function by changing the value to 1 to enable back change to 0.

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