Instant Messaging Software

aMSN is a free open source MSN Messenger clone.

Ayttm - Universal Instant Messaging Client.

Enterprise Instant Messaging - No Compromises.

Messenger (ICQ, MSN, AIM, Yahoo, GTalk compatible) with VPN support.

It description an add-on for Windows Live Messenger which adds lots of features.

An IRC client for Windows operating systems designed for online chat.

Corporate instant messaging program with VOIP, video, and web conferencing.

BigAnt LAN Messenger is designed for small and medium enterprise.

Allows you to see when friends come online and to send them instant messages.

A secure IM client for XMPP/Jabber.

A client for Atlantis Talker.

IM Grabber is a utility to automatically record and index AOL Instant Messages.

Casual 3D chat world that stays on top of your desktop. Be together! Always!

Make Cool Avatars. Make New Friends.

Cross platform, plugin oriented, generic application platform

The FoopChat Server code is ready to support translation to various languages.

A multi-client internet messaging application.

A web (browser) based instant messaging software embed to your website easily.

A truly unique softphone that adds a great deal of efficiency.

Community Messenger with InterCard Business Account.

Animate your display pictures on MSN Messenger or Windows Live Messenger!

P2P Messenger is secure Instant Messenging client, working by Peer-to-Peer te...

Intra-Office Messenger and Organizer.

NetChat is a local network messaging and communications system for Windows.

Coccinella is a free and open-source cross-platform chat client.

Quassel IRC is a modern, distributed IRC client based on the Qt4 framework.

the communicator for private, public and channel chat in corporate networks.

Secure WinPopup compatible instant messenger

BigAnt Office Messenger is a server/client Instant Messaging program

Making you talk to your friends on IM for FREE,also can call cell phones.

Squiggle is a free lan messenger that does not require a server.

Secure business messenger to enhance work efficiency and performance