Invisible Chat is a user-friendly software for communication by LAN. You can make it "invisible" for prying eyes, when undesirable person is staying behind. You can change transparency, form, color, font and many other parameters of software appearance. It does not have any sign of presence in your system, so none would be able to see it in Taskbar, System Tray or Task Manager. The application does not need connection with Internet or specially allocated server.
Invisible Chat is simple, effective and can be used instead of WinPopup - standard Microsoft Windows? application for sending messages using local network.
Strong built-in security allows you to keep the private information in safety.