Radmin Communication Server
Radmin Communication Server by Famatech is a new, secure solution for real-time corporate communications. It can also serve as a secure enterprise instant messaging tool, a solution for online conferencing, and a corporate multi-user Text and Voice chat for employees. ... Text Chat options include private instant messaging, multi-user, real-time text chat conversations. ... Radmin CS supports Windows NT/2000/XP/2003 user level security, so connections can be limited to specific users or user groups, Primary Domains, Trusted Domains or Active Directories.
http://www.famatech.com/download/radmincs30.zip - 3Mb - Download - Screenshot

Tychicus
Tychicus allows you to hide secret messages inside image files without visibly changing the image. Before the messages are encoded into the image, they are encrypted using the popular xICE encryption algorithm. This method of securing messages avoids the suspicion caused by clearly encrypted... Tychicus even checks for key loggers before loading, eliminating a common point of failure for many so-called secure systems. ... Forget about complicated encryption programs made for computer gurus; get this equally powerful alternative for the average Joe.
http://www.xice.net/files/public/tsetupsw.exe - 2Mb - Download - Screenshot

Password Lock Transparent Screensaver Utility
Password protect access to your computer, while monitoring programs that are running in the background. Perfect for system administrators, retail stores running computer demos, or any user of email, instant messaging or live stock quotes. Relax in the knowledge that your computer is secure.
http://www.e-motional.com/evalsoftware/pwltss.exe - 408Kb - Download - Screenshot

CAMELOT Security
CAMELOT Security 2005 is a server side based spam filtering solution for MS Windows platforms. Incoming messages run through a chain of different application layers inside a multi-tier protection system. Several methods of analysis are executed by active content processors, using artificial... The usage of SQL databases for the storage of generated pool data provides high performance also in large messaging environments. ... Explicit boundaries between secure and insecure areas are set in this way.
http://www.atrium-software.com/download/Camelot.exe - 15Mb - Download - Screenshot

GroupMail Business Edition
With the multi award winning GroupMail range of products you can take the effort out of your Marketing, Bulk Email and SMS text message requirements with complete ease and total peace of mind.
http://www.softcns.com/downloads/internet/gm4b.exe - 8Mb - Download - Screenshot

GroupMail Personal Edition
With the multi award winning GroupMail range of products you can take the effort out of your Marketing, Bulk Email and SMS text message requirements with complete ease and total peace of mind.
http://www.softcns.com/downloads/internet/gm4p.exe - 8Mb - Download - Screenshot

Mini-Comm
Mini-Comm is a . NET component to share data between different programs, multiple instances of the same program, or different processes on the same PC. You can share text, objects, collections of objects, and streams of data. * At its heart, Mini-Comm communicates in a peer-to-peer fashion: any... * Mini-Comm includes a WinForms control that exposes the Messaging System. ... * You can specify a password on both ends for highly-secure communications. ... * Mini-Comm comes with a full Messaging System that helps you to track and communicate with other processes, logs messages, and provides...
http://www.mini-tools.com/downloads/Mini-Comm_Setup.exe - 2Mb - Download - Screenshot

Blue Tango - The Text Scrambler
Blue Tango is the fun and practical way to make your messages discrete. It keeps text, rich text and even portions of messages confidential. And that's important. Blue Tango encrypts plain text (like data in . txt files – which have no formatting) and rich text (like data in . ... It is intended to be an easy-to-use, low-cost, secure alternative to hard-to-use, high-cost, more secure encryption methods. ... And you do not have to go through paid secure sites or have keys passed to the recipients.
http://www.highermath.com/tango/bluetango//BlueTango04.zip - 5Mb - Download - Screenshot

Secure Network Messenger
Secure Network Messenger (SNM) - is a real time network communication program able to send and receive messages and files from one computer to another without using dedicated servers. All communication is highly secure! All traffic between copies of SNM is encrypted by strong encryption algorithms. ... Anyone familiar with programs (such as AOL Messenger, IRC and ICQ) will immediately understand how to use Secure Network Messenger. ... With SNM, your employees will be able to communicate without leaving working places.
http://www.networkmessengers.com/msg/download/msg.zip - 599Kb - Download - Screenshot

IMbrella
Easily deployed, IMbrella installs on any PC with access to your network and analyzes all traffic to detect, manage and archive traffic through public IM servers, including: MSN Messenger; Yahoo Messenger; and AOL Instant Messenger. IMbrella is invisible to your employees and requires no extra... s Secure Enterprise Solution is designed to: Control IM permission company-wide; Restrict external IM to designated employees; Provide internal IM to designated employees; Reduce lost productivity; Protect the firm from harmful viruses hidden in IM file transfers.
ftp://ftp.deerfield.com/pub/current/imbsetup.exe - 16Mb - Download - Screenshot