If you have Windows 7 and would like to enhance the way Aero Snap works , then This is the freeware for you: Acer Gridvista.
Read on for download link.
More functions than Aero Snap
With Acer Gridvista you don’t only get the Aero Snap function as in Windows 7, you get a better version of it. The program allows you to divide each monitor in up to 4 individual sections, each with its own setting. You can preset zones in which the program snaps a window into place, or you can snap it in place using a custom button which is added to your explorer windows. For Windows 7 users; Gridvista integrates seamlessly into Aero Snap giving it even better functionality.
In Addition is also provides transparent windows and the option to stick a window on-top of others.
After you download and install the program, you’ll find a blue monitor icon in your Taskbar. Right-Click it edit the settings and how many zones you want to divide that monitor into.
Once Installed, and monitors divided – just drag a non-maximized window over an active zone to snap it into place. You will also find three custom buttons at the top of each window you open. These buttons let you choose which zone to use, if that window should always be on top or not and if the grid should be magnetic or not.
Yes, This Freeware is developed by Acer Computers, and originally developed for their notebooks. I have not found any official download link on the Acer Website but it is freely available for download on the net. More information on features here.