Windows 7 - Shortcut to lock screen

Was missing the ability to click on an icon and lock the screen.   

Found this on the internet (http://www.howtogeek.com/howto/windows/create-a-shortcut-for-locking-your-computer-screen-in-windows-vista/) :

1.  Right Click on desktop
2. New -> Shortcut
3. Location: "rundll32.exe user32.dll, LockWorkStation"
4. Name: "Lock Screen"

Done!