iZotope products support three methods of authorization. The method that will be best for you is based on the machine(s) on which you want to install your iZotope products.
For a list of common error messages you may encounter when attempting to authorize your iZotope product(s), what they mean, and how to resolve them, please visit our knowledbase article:
After product installation, the Authorization Wizard will help walk you through the process. You can also watch all the tutorial videos to review step-by-step instructions for each authorization process and determine which is right for you.
If your computer is connected to the internet: The most commonly-used authorization method is Online Authorization, where you can use your serial number to directly authorize a product, after product installation on your machine.
If your computer is not connected to the internet we offer a Challenge/Response authorization method. For this process, a challenge code is provided by the software on the desired machine after you perform the installation. This challenge code must then be submitted to our website via another web-connected device. A response file is then provided that you can use to authorize the offline machine.