| ActiveBuddy: Provides software for developing and hosting interactive agents. |
| ActivePager: 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. |
| AniazPOPUP: Expands the concept of Windows messaging from the droplet created by winpopup to a new level. |
| Arliweb Messaging Platform: Arliweb XMP is an XML and web services based messaging service and software application. |
| Bantu: Offers a web-based solution to instant messaging that lets you talk to people with the AOL, MSN, YAHOO, and ICQ messangers. |
| BattleCom: A program that allows you to talk instead of type, a new way of chatting. |
| BigBlueBall.com: Instant messaging tutorials, reference, news and forums for AIM, MSN, Yahoo, ICQ, Trillian and other products. |
| Centericq: A text mode menu and window-driven IM interface that supports the ICQ2000, Yahoo!, AIM, MSN, and IRC protocols and has many other useful features. |
| Cop2p: This product encrypts all communications over the web. Other options include file sharing and chat. |
| Duisoft: Enterprise Instant Messaging (EIM) applications all featuring a dialog user interface and instant broadcast and response capabilities - providing means to extend enterprise applications to the mobile workforce and mobile consumer. |
| Easy Message: Free all in one instant messenger, including support for MSN Messenger, Yahoo Messenger, AOL Messenger, and ICQ Messenger. |
| EMSN Messenger: EMSN is a PHP-Messaging System. |
| Encrypted AIM: This addon encrypts instant messages for MSN Messenger, AOL Instant Messenger, and Yahoo Instant Messenger. |
| Endogy: Endogy provides Instant Messaging software and consulting services for the improvement of team workflow. |
| Gaim: A Linux/UNIX instant messenger client, which can handle multiple protocols, including AIM, ICQ, Yahoo!, Jabber, and Gadu-Gadu. |
| GlobalChat, Inc.: Offers system to send high priority message instantly to customers and associates. |
| Gtkmsn: A MSN protocol based client. Includes download section and screenshots. |
| Integrity Messenger: Messaging service that provides instant contact with Internet users, language filtered and family safe. |
| komunikator tlenplus: An extended Tlen client with emotes,skins, and plugins. |
| Kopete: Linux based, KDE specific, it is a flexible and extendable multiple protocol instant messenger. |
| Meca Messenger: Multi protocol Instant messenger with: multimedia integration, skins, SMS capabilities, logs, email viewing and offline messages. |
| Miranda Instant Messenger: A modular open-source multi-protocol instant messenger for Windows that maintains an extensive database of community developed plug-in's that add functionality. |
| naim: A console-based chat client for Linux/Unix-like systems, supporting the AIM, ICQ, IRC and Lily protocols. |
| OMS Online Messenger Service, SOAP Webservice: A webservice for creating one's own messenger client. Included is a webbased version of OMS. |
| OUGO Messenger: A Windows Messenger. |
| P2P Messenger .NET: 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. |
| PKIChat Secure Instant Messaging: Secure instant messaging using auto generated public/private key pairs. |
| PowWow Messenger: A multi-functional instant messenger program. Including: Chat, Text to Speech engine, games, guestbook, and whitepages. |
| Rediff Bol: Allows user to chat, check mail, and search the web. |
| SimpleAIM: An open source miniature conosole based AIM client written in pure Java. |
| SphinXSoft: SphinXSoft M2 is an Instant Messenger that allows users to customize the look and feel to their needs. |
| Trillian: A chat client for Windows that allows you to simultaneously connect to AIM, ICQ, IRC, MSN and Yahoo! Messenger. |
| VSL LanToucher: Instant messaging software solutions for business and home text communications across private networks. |
| Winpopup LAN Messenger: A full-featured server-less instant messenger for Local Area Networks. |
| WinPopup.com: Windows popup messenger. Has the ability to transfer emoticons, and links. |