Open Source Windows Conferencing Software

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See http://silcnet.org/ for detailed information. SILC provides common chat and conferencing services like private messages, instant messages, channels and groups, and video and audio conferencing. The main difference to other protocols is that SILC has been designed with security as its main feature. All packets and messages sent in SILC network are always encrypted. Private messages are encrypted end-to-end, channel message are encrypted with channel-wide secret key and secure file transfer is protected peer-to-peer.

Catchup IM is a cross platform instant messaging application built in Java. The application is targeted for Windows, Linux, and Mac OS. The project is currently in Beta release stage. For more information, visit http://catchup.sourceforge.net

Boqueron is a ruby/gtk2 based jabber client aims to be simple and effective. It uses xmpp4r. It's intended for newbies in jabber and eye-candy fashioned. Join to conference in Jabber: boqueron@conf.jabberes.org.

CherryPop is a Java based multi-user server with a GUI client.

Fix Skype is a python script and Win32 binary that is used to fix "future" timestamps in the Skype message database, such as those caused by the end of DST or by dual-booting a Linux system with time set to UTC from anywhere west of GMT. Essentially, you feed it your username and the number of hours by which some timestamps are in the future, and it subtracts that amount of time from any timestamp greater than "now".

A lightweight msn client, written in C++, GTK2, cross-platform.

A MSN Messenger client written in C++, using the Qt toolkit. Distributed under the BSD license.

IMDispatch leverages the power of Perl and Net::OSCAR to emulate the paradigm of telephone support over the AOL Instant Messenger service.

The J-WASTE project aims at the implementation of a platform independent client/server Java implementation of the WASTE protocol. This project started as a mandatory project course in networking at the Luleĺ University of Technology in Sweden.

JForum is a complete, powerful and multi-threaded forum software. Features include unlimited forums and categories, topic watching, email notification, Private Messages, user ranking, advanced permission schema and moderation options and much more.

OSpaChat for people communication in rooms with benefits: screenshoting, statuses, pictures, smiles, file transfer etc. Own mood, special atmosphere contributing for people communicating. Rest, gaming, flirting, work conversations, maintenance of support

IPng peer-to-peer messanger software written in Java, with legacy IP support. IPv6 support in the making, regardless of testers, now that Java supports v6.

IM,WebIM and Sip voip tool. Client is Win32, Server is CentOS 5. support video,audio, file trans, sip call.

The Skype SourceForge project is the public repository for Skype-related open-source projects including SkypeWeb and Skype API implementations. Do you have a SkypeWeb or SkypeAPI project you'd like to share? Get in touch!

The Solitox Community system provides an integrated real-time chat service, web interface, and a scalable infrastructure for adding more services with common credentials. These interfaces allow a greater level of communication for your users.

sushi is an IRC suite providing a central daemon and several clients. It currently consist of - maki: the central IRC daemon - tekka: the PyGTK client - nigiri: urwid terminal client There are more clients to come.