Step 3: Bear with me!
So now to save the file!
press save, make sure to make the file extension ".vbs"
I know it was alot to take in but i'll explain what happens if the file is used correctly:
Firstly you'll get a prompt asking for the target computer
Next they'll be a message making sure you want to start a conversation with this computer.
If you clicked 'Yes' then an input box should appear (in the top right of your screen, so you can continue with what you want to do) asking you to input the message.
Once a message is input and 'OK' is clicked, then a cmd window should spring out along your toolbar and then disappear, this was the batch file sending the message.
If your friend (or enemy) has this same program installed on their computer, or is nifty with NET send, then you should get a reply back!