Cited from FAQ about DVDFab 12 registration:
DVDFab 12 products use the most advanced online verification method, so you just need to use your DVDFab account to activate/authorize your software.
For users who haven’t activated a DVDFab account, there’re two methods to activate the account:
1. Once you complete the purchase, you will receive a confirmation email from us, in which you can click the activation link to complete the registration;
2. Go to our Member Center and click “Create an Account” to create your DVDFab account with the email you used to purchase our product(s).
For users who have activated their account but forgotten the password, please click “Forgot Password?” there.
Our Member Center can be accessed at: https://www.dvdfab.cn/member.htm
Once your account is activated in the DVDFab Member Center, you can apply the account info to authorize DVDFab products on your computer. Please refer to this page for information: https://www.dvdfab.cn/how_to_register.htm