Step1: Run AVCLabs Audio Book Converter. First you should click the AVCLabs Audio Book Converter menu, and then select the Registration... option to register your Audio Book Converter.
Step2: You should filled with User ID and Register key in the input blanks reference below figure. You may use command+c to copy and command+v to paste in the window.
1. Make sure the both User ID and Register key are provided by our company after you pay the registration fee. If you have not paid, please click Buy online to purchase.
2. User ID and Register key you enter is both kept completely and correctly, if wrong, an error message will pop up as below:
Step3: Registration finished, and then AVCLabs Audio Book Converter is full version without limitation.