When you add a Rhino 5 license to the Zoo, you will be asked to validate the license online. Rhino 5 licenses must be validated before they can be used.
Critical: if you are upgrading to Rhino 5, you need to keep track of which previous version CD-Key you used to upgrade. You can only use each previous version CD-Key once.
The only piece of information used during license verification is your CD-Key, which is included when you buy Rhino.
Registration is not required, nor is any personal information. No computer-specific information, or information derived from your computer is sent to Robert McNeel & Associates.
To add licenses to the Zoo, run the Zoo Administrator (ZooAdmin.exe), and then click Edit → Add.
To add licenses to the Zoo:
Select Rhinoceros 5.0 from the drop down list.
Enter the registered owner and organization of the product.
Enter your licence code or CD key.
Click OK begin license validation.