ClamWin Free Antivirus comes with an easy installer and open source code. You may download and use it absolutely free of charge. It features:

• High detection rates for viruses and spyware;
• Scanning Scheduler;
• Automatic downloads of regularly updated Virus Database.
• Standalone virus scanner and right-click menu integration to Microsoft Windows Explorer;
• Addin to Microsoft Outlook to remove virus-infected attachments automatically.

ClamWin Free Antivirus uses ClamAV Scanning Engine

Gaim is a multi-protocol instant messaging (IM) client for Linux, BSD, MacOS X, and Windows. It is compatible with AIM and ICQ (Oscar protocol), MSN Messenger, Yahoo!, IRC, Jabber, Gadu-Gadu, SILC, Novell GroupWise Messenger, Lotus Sametime, and Zephyr networks.

Gaim users can log in to multiple accounts on multiple IM networks simultaneously. This means that you can be chatting with friends on AOL Instant Messenger, talking to a friend on Yahoo Messenger, and sitting in an IRC channel all at the same time.

Gaim supports many features of the various networks, such as file transfer, away messages, and typing notification. It also goes beyond that and provides many unique features. A few popular features are Buddy Pounces, which give the ability to notify you, send a message, play a sound, or run a program when a specific buddy goes away, signs online, or returns from idle; and plugins, consisting of text replacement, a buddy ticker, extended message notification, iconify on away, spell checking, tabbed conversations, and more.

Gaim runs on a number of platforms, including Windows, Linux, and Qtopia (Sharp Zaurus and iPaq).

Gaim integrates well with GNOME 2 and KDE 3.1’s system tray, as well as Windows’s own system tray. This allows you to work with Gaim without requiring the buddy list window to be up at all times.

iFolder is a simple and secure storage solution that can increase your productivity by enabling you to back up, access and manage your personal files-from anywhere, at any time. Once you have installed iFolder, you simply save your files locally-as you have always done-and iFolder automatically updates the files on a network server and delivers them to the other machines you use.

Sponsored by Novell, the iFolder project is built on the Mono/.Net framework to integrate seamlessly into existing desktop environments.

Prometheon can assist in the integration of iFolder into your environment to help keep your computers automatically backed up and allow your people to collaborate in a new and easier way.

Wildfire is a real time collaboration (RTC) server dual-licensed under the Open Source GPL and commercially. It uses the only widely adopted open protocol for instant messaging, XMPP (also called Jabber). Wildfire is incredibly easy to setup and administer, but offers rock-solid security and performance.

Wildfire integrates with Active Directory or eDirectory, allows group chats, does file transfers, Voice-Over-IP, and more.