Activate eval version?

I recall it is possible to activate the eval version with a CD key now. Where can I find info on how to do so, so I can send to the customer?
Thanks.

I think all you do is run the eval, every time you open it it asks if you want to enter a license…

–Mitch

Help - About Rhinoceros, Licenses tab
-or-
Options - Licenses

Thanks!