All installations of HICSOAP (professional, deluxe, and standard) always start as a fully functioning 30-day trial. For the program to continue working past the initial 30 days, it must be unlocked. Each installation generates a unique registration number. UNLOCK keys are generated by Holladay Software to match this unique REGISTRATION NUMBER. You can't use an unlock key from one installation to unlock another. So to unlock your installation you need a new unlock key to match your new, unique registration number.