Hack The Hacker.

• What you need? > you need your friend's IP Address and Command Prompt
• Open Notepad and write this code : 

@echo off
:A
Cls
echo MESSENGER
set /p n=User:
set /p m=Message:
net send %n% %m%
Pause
Goto A

• Save this as "Messenger.Bat".
• Open command prompt 
• Drag bat file over to Command Prompt and press Enter 
• This should came up 

Now, type the IP Address of the computer you want to contact and press enter
You will see something like this:

Now all you need to do is type your message and press Enter.

Enjoy..!!