Aero Shake is one of the lesser known features included in Windows 7. It offers a unique way to minimize all the open windows on your screen while leaving one up that you want to work with. I like to use Aero Shake to concentrate on just one open application without the clutter of other windows in the background.
All you need to do is shake a window with your mouse. Just like you are trying to move it but only shake it.
i dont need it -.-