The System ID is based on fundamental components of the computer that are very seldom changed. Therefore you will NOT need a new authorization if you change your audio card, MIDI interface, model, network card or external devices. Hoever, if you change your CPU, operating system, or other central components a new authorization will be necessary. Since only two authorizations are possible via the automatic registration system you will need to contact us if you need a third authorization, whereupon registration support will walk you through the uncomplicated process.