Beginning with Windows XP, you can now press the Window-L key sequence
to lock your workation (or return to the Welcome screen if not joined
to a Windows domain).  This is a very convenient shortcut, since you
can press it with a single hand if you ever get up from your
workstation and need to lock it for security purposes.

Unfortunately, on Windows 2000 it was necessary to press Ctrl-Alt-Del
and then select the "Lock Workstation" button.  Sometimes that section
step is missed or is mistyped, because I sometimes see people press
Ctl-Alt-Del and walk away from their desktop without realizing that it
did not actually lock their workstation.

This is a small application that is intended to be run on Windows 2000
systems to allow you to press the "Window-L" key sequence (assuming
you have a 104-key keyboard with the Window key) to directly lock your
workstation.  This is much more convenient, since you can now simply
press the same key sequence on Windows 2000 or Windows XP without
having to change your behavior.