http://blueonionsoftware.com/freesnap.aspxFreeSnap?Version 1.5 released 7 December 2008
Manually resizing windows can be a pain, and getting them to line up along the side of the screen is an unwelcome dexterity test. With FreeSnap, you can move and resize windows with your keypad. Just fire up the program, and you can use hotkeys to center windows or send them to all corners of the screen. You can use the "plus" and "minus" keys to resize windows without tiresome clicking and dragging. [August 2005 - PC World]
Ever try to size a window so it just touches the edge of the screen? It?s tedious (at least for me). FreeSnap allows you to instantly resize any window edge to the corresponding screen edge. Want that window to touch the right edge of the screen? Press and hold the left ?Windows Key? (see illustration below) and press the right arrow. It?s just that simple. The number-pad keys work as well, regardless of the NumLock state.