If I need to format my hard disk or buy a new computer, will I have to pay for the program again?

No, you only have to reinstall the program and then restore your backup copy of your database. The downloaded program from the Agritec Web is a normal executable file. This file can be copied to any format such as floppy disks, CD or DVD. You can install the program as many times as necessary, as long as you comply with the conditions of the license.