Hot Corners allows you to assign an action to the 4 corners of your screen, that can either launch a program or file of your choice, launch your screensaver, display the desktop, open a Google search, put your computer into Standby mode and more. Once you have assigned an action to one of the corners, all you have to do is touch it with your mouse and the action will be launched.

The license of this software is Freeware, you can free download and free use this system utility software.