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

Ken Messenger Server
Ken Messenger Server the Instant Messenger Server working with our IM Ken Messenger. Ken Messenger is a professional Instant Messaging software system based on the client/server principle. It allows companies, organisations, institutions and dispersed workgroups to create and control their own... Ken Messenger Client can also be used free of charge as an Internet Messenger, and as a viable alternative to the existing messengers, using more developped features. ... Its tremendously powerful features yet fully compatible with Ken Messenger included in Kennet Net.
http://www.wilcom2.com/Download/KenMessengerServer.exe - 10Mb - Download - Screenshot

MSN Messenger Monitor Sniffer
MSN Messenger Monitor Sniffer is network utility software designed to monitor, record and capture MSN Messenger conversations on all computers in a network. It is able to record all conversations automatically and export all intercepted messages to HTML files for later processing and analyzing. ... It is very easy to make it to work, and it will monitor all conversations in your local area network without the use of client software installed on the remote computer.
http://www.immonitor.com/download/msnmonitor.exe - 1Mb - Download - Screenshot

Fomine Messenger
This LAN messenger allows you to exchange messages on a local network (LAN). The program does not require you to set aside a server to function properly. It is easily configurable and you will be ready to work immediately after the product's installation. ... The messenger features full support for Winpopup and netsend.
http://www.fomine.com/products/messeng1.exe - 690Kb - Download - Screenshot

Yahoo Messenger Monitor Sniffer
Yahoo Messenger Monitor Sniffer is handy network utility software designed to capture and observe Yahoo Messenger conversations on all computers in a network. It is able to record conversations automatically in real time. And export all intercepted messages to HTML files for later processing and... It is very easy to make it to work, and it will monitor all conversations in your Local Area network without the use of client software installed on the remote computer.
http://www.immonitor.com/download/yahoomonitor.exe - 1Mb - Download - Screenshot

ENat for MSN Messenger
Have you ever met this problem when you're using MSN Messenger: Cannot voice chat or video chat with your friend, can't send a file to your friend when you or your friend are behind NATs. If you find this is very annoying, then ENat for MSN Messenger maybe a solution for you. ... The program of ENat for MSN Messenger can detect the network enviroment where your PC is located in and tell you whether you need to enable ENat to make a MSN Messenger voice talk or video talk. ... Since not all of NAT devices can support MSN Messenger applcation, they can't make a voice chat if the notebook is...
http://www.easyfp.com/msn-messenger-directtalk/download/enat.exe - 1Mb - Download - Screenshot

Omega Messenger
Omega Messenger is an online communications tool designed to be more efficient than the others currently on the market. It currently supports the four major instant messenger networks : MSN Messenger, Yahoo! Messenger, AIM and ICQ. You will be able to chat with friends, customers, co-workers,... With Omega Messenger, you can: -Chat via text or in conference in real time -Transfer files quickly and more reliably than on official MSN or Yahoo clients! ... -Get email from your Yahoo!
http://www.omega-messenger.com/Messenger.exe - 3Mb - Download - Screenshot

EtherBoss MSN Messenger Conversation Monitor & Sniffer
EtherBoss MSN Messenger Conversation Monitor is a handy network utility to capture and log MSN Messenger chat on network. All intercepted messages will be saved on the disk automatically. It also provides rich-features report and finding system to locate and export captured MSN conversations as... Just run the EtherBoss on any computer on your network, and click the start button to capture. ... It is especially useful for administrators or parents, who need to monitor what their employees or kids are talking about with others on MSN Messenger.
http://www.effetech.com/download/EtherBossMSN_trial_setup.exe - 970Kb - Download - Screenshot

Zango Messenger
Zango Messenger is a free unified instant messaging client that allows you to access the AIM, MSN, Yahoo, and ICQ services simultaneously from one window. With Zango Messenger, there's no need to have multiple instant messaging services running on your computer. ... Now you can sign-in and communicate with friends on any IM network using Zango Messenger. ... In exchange for free access to Zango Messenger, users are shown 2-3 targeted Websites while browsing online. ... With a download size of only 250K, there’s no comparable instant messaging product that comes close to Zango Messenger's...
http://downloads.zango.com/ZangoAp...Files/Easymessenger/setup4112.exe - 3Mb - Download

NetChatSpy
Remotely monitor Instant Messenger (Windows Messenger) conversations from any computer on a local area network. Undetectable because software installed on only one computer in the network. Can operate in 'Stealth Mode' to record conversations on local computer for added security. ... Monitor children or employees to ensure on-line safety and appropriate use of Internet.
http://home.iprimus.com.au/chris_langford/netchatspy.zip - 6Mb - Download - Screenshot