Question: I have registered my license key successfully, however my license key does not show in the registration dialog, how to solve this problem?

Answer: To fix this problem, please run Rhino as administrator firstly, you put mouse cursor on Rhino icon, click right mouse button, select 'run as administrator', and run Rhino, then run command _RsRegister and register the key again. This is because Administrator has authority to save the key in your system.