Swapping the Mouse Buttons for Left Hand from the Command Line

If you want to swap the mouse buttons for a left handed person,

you can do this from the command line.

Win9x:
RUNDLL user.exe,SwapMouseButton

Win2000:
RUNDLL32 user32.dll,SwapMouseButton

To swap it back again to a right-hand mouse, you need to run the mouse icon from the Control Panel.