Remapping the keyboard layout in Windows 7

For some reasons, you may want to change to keyboard layout, such as playing games, changing mac keyboard layout to be more comfortable when using Windows. Try this program Sharpkeys at: http://www.randyrants.com/2006/07/sharpkeys_211.html.
There are also other programs that do the same purpose at: http://vlaurie.com/computers2/Articles/remap-keyboard.htm.