Antares Autotune v4.2.3 or later is required for iLok authorization.
You’ll also need a free iLok.com account.
When installing the software you will be given the choice to authorize to the iLok. The authorization will be placed at your iLok.com account.
You will then need to transfer your license to your iLok via the iLok License Manager. To learn how to do that, follow steps 8-10 on this guide.