Licensing rules for Music MasterWorks:
If you purchase Music MasterWorks, you will get free minor version upgrades (anything after the decimal point), and free unlock codes for re-installation (see restrictions below). You will also get a major version update free if you purchase within 3 months of the release.
If you purchase the CD by postal mail option, you will receive an installation CD that does not require an unlock code (you will also be entitled to receive unlock codes through e-mail as well).
Free unlock codes are limited to 10 per minor version per copy purchased.
For residential use, each copy purchased can be installed and used on up to 3 computers at the same time - all computers must be at the same residence, or in the case of laptops owned by someone living at that residence.
For commercial or educational use each copy purchased can be used on only 1 computer at a time. Each copy purchased may be installed on multiple computers at the same time as long as it is being used on only 1 computer at a time.