Fomine WinPopup 

Fomine WinPopup is an instant-messaging tool for all versions of the Windows. Fomine WinPopup full support for Winpopup and 'net send' (Windows components).
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Softros LAN Messenger 

Softros LAN Messenger is a instant LAN messaging software for home or office users. It does not require a server and is very easy to install and use. The program correctly identifies any Windows user account and works in any TCP/IP network.
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MessagePal 

MessagePal provides simple, secure, instant messaging between users on your LAN without a server or Internet connection. Group lists, 1-click Replies, Message Forwarding, and many more unique features!!! http://www.messagepal.com
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CapeSoft Office Messenger 

CapeSoft Office Messenger is a peer to peer office instant Messaging program. It's great for sending all sorts of messages instantly to your office colleagues and it's easy enough for everyone to use. A must for every office.
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PageGate 

Messaging server software sends: SMS text messages to: pagers, mobile phones. Messages can be accepted from: networked computers, email, web pages, commandline, text files, serial ports, modems. Messages can be sent via Web or modem.
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StaffIndex 

StaffIndex gives access to the status of the staff in your office including. Status information inclueds in/out, lunch, appointments, leave and sick leave with due back times and notes. StaffIndex is also telephone index and a messaging service.
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