Expose all windows displays all windows on the desktop. Windows are minimized so that all fit on the screen. Expose applications does the same for one application and Desktop moves all windows off the screen so that they are barely visible.

Dexpose2 clones that Mac task switcher and brings that functionality to Windows. All windows are exposed when pressing the F9 key, all applications with the F10 key and the Desktop feature with the F11 key just like they are assigned on the Apple Macintosh.

The options are extensive. Users can change hotkeys, speed and layout and configure so called hotspots as well. These hotspots are four areas at the edge of the screen that automatically provide access to the features of Dexpose2. The time that is needed to activate the function can be configured in the options. If I wanted to immediately use the Desktop feature when moving the mouse to the lower right corner of the screen then I could configure this behavior.

The memory footprint depends on the amount of open windows and applications I think. It uses roughly 32 Megabytes on my system currently with several applications like Firefox open.