Teach you how to quickly lock your computer

As long as used Wimdows 2000's should know that by pressing Ctrl Delete Alt keys, you can quickly lock the computer, and do no taffect the computer program currently under way, but XP seems to only log out function, and a board the original program will be shut down, and now I can be achieved through the following methods!
STEP1: Right click on the desktop, "right" in the resulting pop-up menu, select "New" → "shortcut." STEP2: a "Create Shortcut" dialog box, in the "Enter location of the project had" lost the box "rundll32.exe user32.dll, LockWorkStation", click "Next" in the pop-up window, type the name of the shortcut, Click "Finish" button. Cheat added: Of course, the easiest way is to lockthe computer directly by WinKey L.