The How-to Geek just uncovered an app that brings Windows 7’s AeroSnap feature to older operating systems including Windows XP and Vista. This feature, a popular new option in the Windows 7 OS, automatically resizes your windows when you move them from one side of the screen to the other. For example, if you want to compare two Word documents side-by-side, you can use AeroSnap to do so without having to manually drag the corners of the windows around to resize the windows.
With the third-party application, AeroSnap for Windows Vista & XP, you can configure your windows to behave similarly to how they would by default if on Windows 7. You can also customize its interactions, including turning on or off “Snap Preview,” disabling the splash screen, removing the system tray icon, setting its auto-start option, or enabling hotkeys. If you want to get even more precise, you can turn on or off left, right and top snapping or set snapping to function by hotkey only.
It looks like this app has been around for some time – the last update was in summer 2008. But if you hadn’t come across yet and still have XP on your netbook, for example, it may be worth checking out. The app is available as a free download here.