As I understand the authorization system, it relies on the synthesizer contacting the server run by the company to verify that the product is registered once a month.  That means that if the server is down, if the user is not on the Internet for some reason, or if the company goes out of business, the synthesizer won't function until some provision is made.  I haven't looked into the keys question but I consider the need for monthly verification to be a very serious defect.  Once a product is authorized, it should stay authorized.

Gene