Yesterday I want to send a message to my friend’s computer on my network(home network behind a router) without install a new special software.After do some search on the Internet I found a “net send” command which included in Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000, Windows XP and Windows 2003.Net send command is a command line interface that pop-up a message in a simple Message box on your friend’s computer like the bottom picture.
net send message box
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