Metadata Utility is licensed per PC (Personal Computer) and NOT per User that logs in to a PC.As an example: A single License can be installed in One (1) PC. If you whish to migrate your License from your existing registered PC to a new PC, then you must deactivate your license and then move it to the new PC.If you want on more than one computer to use Metadata Utility to manage your movie Library for more computers, then you have some options:-you can purchase an additional license for each computer that you want to use the full capabilities of Metadata Utility.-you can install a new version of Metadata Utility and use the free functionality that is available in all installations of Metadata Utility. For more information see License Comparison vs. Free Version click here.Note: there is a Maximum limit of 5 Activations per License. After a Maximum License Activation has been reached, then the license will become locked to that last (5th activation) activated PC. There is NO way to extend the activation on any given License once that the activation limit has been reached.