Here's a link to information from iLok:

-Matt Sohn

----- Original Message ----- 
From: "Steven Smolian" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, July 15, 2007 12:16 PM
Subject: [ARSCLIST] iLok Keys

I have a plug-in program that uses an iLok key plugged into my computer. 
I'm considering buying another plug-in made by a different manufacturer.

Can I download the program that unlocks the newer program onto my existing 
key or do I need a second one?

Steve Smolian