Command prompt is to confusing

[xtreme_1here]

someone teach me the steps cuz when i enter someone's IP i just get an error or not found so someone tell me the steps on wut to do, thanks.

[twentyone]

are you trying to send messages?
if you are check your services to see if the messenger is enabled
go into to run and type services.msc and enable messenger
you will have to do it on both computers