A kid in a computer class at our tech center found of the ip address of our High School's network. He then send little messages to all the computers at the school. I think the command to do this is netsend. But Im not sure. They arrive at the destination in the little, what I like to call them, "ok" boxes. How I thought you did this was to make a .bat file that says "netsend [ip address] [message]". Then open the file and it sends the messages. However, I tried this here at home to see if it would send to the other computer in my house, and it dodn't work. What am I doing wrong? Is my way of doing it completely wrong?