Automuter has been designed and developed by an organization of the same name and is supported on various Windows systems including Windows 2000, 2003, XP, and Vista systems. This audio software related application is intended to help users turn off their audio sounds or music when locking their computer systems. This tool will help you to turn off your headphones or speakers when you lock the system. Once installed, this tool will appear as an icon in the system tray notification area. You can configure this tool to auto turn off your audio whenever the system is locked, when the screensaver turns on, by setting a silent time schedule, or even by using a hot key.