It is possible to limit a license to a person / user:
In the Screen - Licence Information select license per user.
If the application is a non-network application (installation is on a single PC) AND you want to limit it to one user, choose license per User and number of users =1. For details about the user license see Licence per User / Person.
This feature requires the All-In-One Protector Premium Plus or Multi-Platform Edition.