EZ Intranet Messenger is designed to work within a LAN segment, without the presence of centralized server. Its primary goal is to provide instant messaging service, along with online status notification, file transmission, and real time public chat.

It is a messenger for internal communication. It does not need a server to authenticate against to sign in. As long as you can get an IP address from the DHCP server (i.e. the network supports multicast), it will be able to find all other users within the same network segment and communicate with them. It is very handy to use on local area networks as it allows admins to provide a simple messenger service to the members without the need to add more servers, making life a lot easier.
It works on Windows, Linux, Mac OS X and other operating systems which has Java Runtime Environment Version 1.6.x or above installed.
It features private instant messaging service, online status notification, file transmission, and real time public chat.

The license of this software is Free, you can free download and free use this instant messenger software.