How do I activate my Parallels lifetime license?

Once you've completed the Rent-to-Own program for Parallels, Splice will email you a copy of the serial number to the email associated with your Splice account.

You would them register for a new Softube account and then verify that new Softube account through the email associated with that Softube account. 

Next, register the serial number you got emailed from Splice on Softube's website.

Create your iLok account on Softube's website

Download the Softube Central software

Uninstall the version of Parallels installed through Splice 

To uninstall, remove the plugin files from these locations:

MAC:

AU: Macintosh HD/Library/Audio/Plug-Ins/Components

VST: Macintosh HD/Library/Audio/Plug-Ins/VST

AAX: Macintosh HD/Library/Application Support/Avid/Audio/Plug-Ins/

Windows:

C: > Program Files > Vstplugins or C: > Program Files > Steinberg > Vstplugins*

C: > Program Files\Common Files\VST3
C: > Program Files\Common Files\Avid\Audio\Plug-Ins

Download and install Parallels directly through Softube Center
Click on the "Activate" button to associate your license with your machine.

At this point you should have a fully unlocked version of Parallels running on your machine.