EMSN is a PHP-Messaging System.

A web service for creating a messenger client. Included is a web based version of OMS.

A multi-functional instant messenger program. Including: Chat, Text to Speech engine, games, guestbook, and whitepages.

Instant messaging software solutions for business and home text communications across private networks.

Endogy provides Instant Messaging software and consulting services for the improvement of team workflow.

A secure Instant Messaging client, working by Peer-to-Peer technology. It is fully decentralized and does not require any servers. Supports public-key cryptography. Requires installing .NET-Frameworks.

An instant messenger for local area networks enabling you to talk in real time to anybody on the same computer network. Offers Answering Machine, and Templates and Blacklist.

Offers a web-based solution to instant messaging that lets you talk to people with the AOL, MSN, YAHOO, and ICQ messangers.

An extended Tlen client with emotes, skins, and plugins.

A MSN protocol based client. Includes download section and screenshots.