Have you ever been lost in deep concentration working on a project on a virtual machine when you click on something that generates the system alert box - and the annoying and sometimes very loud system beep that comes along with it?
The system beep is actually controlled by the Beep service. The Beep service cannot be controlled by the Service Manager, so you cannot modify the default startup properties (Manual/Automatic/Disabled). You can, however, stop the Beep service by entering the following command:
net stop beep
Note that the next time the machine reboots, the Beep service starts again. You can automate the stopping of this service by putting the stop command in a logon batch script.

Comments