This little tool lets you to close all running applications with just one click. It doesn’t use system resources because it only flashes a ‘close’ signal to all open windows on the desktop and then ceases.
Just create a shortcut to the tool in the Start Menu, Quick Launch, Windows 7 Taskbar or elsewhere.
You
can always add a hotkey to this shortcut. It is really very handy if
you are running ~20 applications and want them all to quit instantly. It
works just as if you were pressing the close button for each
application.