AeroSnap is a free application for Windows XP and Windows Vista users to have Windows 7 drag-and-snap-to-size feature in their computer. Simply download the feature through the link below and install it in your computer that’s all! To use the application, simply drag the window to the side or top edge on the screen to resize it either to half screen or full screen. AeroSnap is useful when you want to organize your screen when opening multiple desktop windows.
http://www.aerosnap.de/index_eng.htm
