VSL LanToucher Network Messenger 

LanToucher is a full-featured, Microsoft WinPopup-compatible LAN messenger for Microsoft Windows 95/98/NT4/2000/ME/XP/Server 2003. Designed as a WinPopup and "net send" replacement, LanToucher provides many more functions, options and features.
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WinPopup Speak! 

WinPopup Speak is free add-on for Fomine WinPopup. This application speaks incoming messages that received by Fomine WinPopup.
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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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Ariolic NetSend 9x 

With this small console utility you can send messages over your network on Windows 9x/Me/NT/2000. Using of the program is similarly to the command 'net send' from Windows NT or Windows 2000, but Ariolic NetSend 9x has advanced capability.
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Ariolic PopupMe 

Ariolic PopupMe is a small and useful message service for Windows 95/98 and Windows Me. It starts with Windows, receives all network messages for a user and shows them like the Messenger service on Windows NT/2000 systems.
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MSNTalk 

MSNTalk is easy to use replacement for standard WinPopup
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