Take a new machine on

The code is what stops the file being worth stealing. Without one, running it does nothing at all.

New code gives you six characters to type at the machine. Open the door asks for nothing there — it lets the next machine from that shop in without typing, and shuts after thirty minutes or one machine, whichever comes first. Both are one shop and one machine; the only difference is whether somebody is standing there able to type.

A computer nobody has touched has no way in, and that is the point — if this step could be done remotely, so could an attack. It takes about two minutes and never has to be done again.

Download connect-to-zanpos.bat

Nothing has knocked. A machine that has run the file appears here by name, with the address it is on and the moment it arrived — and stays there, authorised for nothing, until you press the button.

Installing gives the machine the app and starts it. It does not make it a till: a screen is paired to a shop and given its role in the ZanPOS panel, and that is what decides which menu it holds and where its orders go. Until then it shows nothing and takes no order.