Msg to everyone in same router?
You could use in the Command Prompt (CMD) the
msg command
like this to send a message to all users logged on to the
computer named someone:
msg * /server:someone Hi everybody
If you have several computers to message regularly, you could create
a .bat file for all of them, like:
msg * /server:someone1 %*
msg * /server:someone2 %*
And it can be called by: filename.bat this is my message.