MessagePal provides simple, secure, instant messaging between users on your LAN. Only two minutes to download and install, MessagePal is a peer-to-peer system requiring no central server or administration. This cost-effective LAN messaging system provides unique workgroup features not found in consumer-oriented, ad-supported IM services or even more expensive enterprise messaging systems. Easy to use and administer. Group lists, 1-click Replies, Message Forwarding, and many more unique features!!! http://www.messagepal.com

• LAN Chat 1.
  LAN Chat is a real-time messaging intranet system which allows you to exchange text messages and transmit files. Using a peer-to-peer architecture, LAN Chat can...

• LAN Spirit 1.8.
  Lan Spirit is a secure real-time communications application designed for Business networks

• LanToucher Instant Messenger 1.33
  LanToucher Instant Messenger is instant messaging software for your office or home LAN (Local Area Network) Being an efficient WinPopup and 'net send' command alternative, our full-featured instant messaging application offers you a much richer...

• LanToucher Network Chat 1.0RC
  LanToucher Network Chat is small and easy-to-use chat software for your small office or home LAN (Local Area Network)

• Voice Connector 3.1.1
  Voice Connector is an application for real-time voice communication in local area networks (LANs). An advanced and friendly user interface, voice mail and a convenient text chat option will make your work easier. It is no longer necessary to interrupt your current application or game to talk to friends or colleagues. You can easily choose...

• NetChat 4.
  NetChat is a peer-to-peer local network instant messaging and communications system for Windows which does not require a server to be running for use