The product is registered to the CPU Ethernet ID & Serial Number, not the human! Personally, I would like to own a product for use on whatever CPU I use, of which there are several. For the rare occasion that I need to VPN, I will need a more flexible product. That said, I finally got the demo working after setting a special preference required for use behind an Airport, and for the 3 minutes they allow to test with, It worked fine.