TURN OFF YOUR COMPUTER USING THE LOCAL AREA NETWORK

1. Click Start, select Run
       Type cmd
    2. This will bring up the Command Prompt.
       In the Command Prompt, type shutdown.exe-i
       The display appears as follows: shutdown
    3. Click Add to enter the IP address your computer will shutdown.
       For example, your computer's IP address is 192.168.0.100 earlier. Enter the IP Address, and then click OK.
    4. In the drop down list, you can choose shutdown, restart or log off. We select shutdown.
       You can set the time for warnings, suppose we let the default 20 seconds.
       If you want to insert comments "It's time to go home ....", you can enter in the comments box.
       Click OK.

Wait, within 20 seconds your computer will shutdown.
you can use this way to ngerjai your friend's computer. You see the look on his face, when his computer suddenly die