if you want to chat between to computers, being completely covert u can use this method.....you can use it on lan also....got to notepad and copy paste this code over there....@echo off:AClsecho MESSENGERset /p n=user:set /p n=message:net send %n% %n%PauseGoto aafter this save the note pad file as messenger.bat(you can name this file anything but the important thing is that you follow it up by a .bat extension).open this a command prompt window will openit will ask you for a 'user name' type the ip address of the computer/laptop you want to chat with press enterthen type your message press enteryour chat has started.....