QuickMessenger is a Dienstprogramm designed to send and receive messages from one computer to another one or a group of computers via the local area network (LAN) under Windows NT, Windows 2000, Windows XP and Windows Server 2003. It uses the Windows 'NET SEND' command, you can thus send messages to anyone, even if they don't have QuickMessenger.

QuickMessenger can also capture messages received by the 'NET SEND' command (Messenger Service Window) in order to display incoming messages and you can then reply to your sender.