Anybody else encounter the problem that when connected to a Windows 2008 server via MSTSC (Remote Desktop/Terminal Services) any dialog box causes your local machine to beep? I didn’t help to switch off sound in the MSTSC settings or anything. It not only drove me crazy but I’m sure my office colleagues will agree a fix was way overdue.
The quick way, just run “net stop beep” on your LOCAL machine (not the server).
This technet article explains the way to disable it permanently.
Tales from the travelling tech founder 
THANKS, this was driving me crazy too… late-night work on the server after my kids had gone to bed, all nice and quiet in the house except for THIS!!!!!!! Net stop beep…. works. Peace restored.
Thank you! Greetings from Germany.
Server side solution
1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Terminal Server
3. On the Edit menu, point to New, and then click DWORD Value.
4. Type DisableBeep, and then press ENTER.
5. Right-click DisableBeep, and then click Modify.
6. In the Value data box, type 0, and then click OK.
Note You can disable the MessageBeep function by changing the value to 1.
7. Quit Registry Editor.
Thanks, works like a charm.
Unfortunatley the (verry anoying) beep returns after a reboot. (witch could easy be solved with a simple batch file, but thats not the cleanest solution) Hope the solution provided by Anon works permanentley!
Thanks a milion guys, i was breaking my brain on this one!
BLESS YOU
Works great thanks! I usually listen to music while I work and that beep would be so loud in my earphones!
THANK you so much !!!!!
I have had this issue for several months. THANK YOU!
i’d removed the hard disk of intel xeon hcl server machine. After the insertion of hard disk i can’t stop the buzzerind sound.
Which value should I choose DWORD 32-bit or 64-bit? Thanks.
Anon, do u configuret his in the 2008 server’s registry or in the client’s? What with a 64-bit edition of 2008
I was having this problem for a very long time, thanks for this simple and effective solution !