System Silencer is a helpful little utility that can perform a multitude of different actions after your computer goes idle. On a typical modern operating system, usually the only actions a computer can perform when it’s idling are turning off monitor and hard disk to save power or launching the screensaver. System Silencer goes beyond that.
System Silencer has options to turn off monitors, toggle sound, toggle desktop icons, toggle desktop and lock workstation which can be activated if your computer sits idle for a specified number of minutes. You can also kill a process or run a new program or file. When the system returns back to non-idle state System Silencer can toggle back all changes made to the system when idling.