Arrange windows side by side on the desktop using Snap in Windows 7

Need to compare two documents, transfer files or folders from one window to another easily then use the Snap feature to easily do this. Perform the following to arrange windows side by side on the desktop using Snap.

To arrange a window to the left part of the screen, click and drag the title bar of the window until the mouse cursor is at the left most part of the screen. When you see the graphic displaying the outline of the expanded window, release the mouse button.
Repeat the same for the second window but this time click and drag the title bar of the second window to the right portion of the screen.

You may also perform the same using your keyboard. The keys for arranging windows side by side are:
Windows Logo key + Left arrow to arrange the window to the left part of the screen.
Windows Logo key + Right arrow to arrange the window to the right part of the screen.