NetChat - Version 1.18 A small program made to chat over the local network (LAN) (WORKS USING THE TCP/IP PROTOCOL -YOU MUST HAVE IT INSTALLED IN YOUR SYSTEM) it can send/recieve messages and it can run a RealTime chat. It's a small program, staying down in your system tray (can be down in the task bar also) has the normal options of Popup, play sound and most importantly, it's free.