Shoutbox

You could invite someone to a conversation that you can see the pressed keys. If the person acepts it it would trade ip's and then it would all be possible. Of course the person would only be able to accept if they had the script. Like it would send a code that the script would recognise and open a window to accept. If the person doesn't have the script they would just see a command in the conversation window.
That would ultimatly solve the privacy issue as well!