According to our Single-User License agreement, we allow users to install iZotope products on more than one machines as long as they are the only person who is using the software on these machines. If you need to put your software on a desktop and a laptop, you are allowed to do this. You would use the same Serial Number to authorize the software on each machine. To do this, simply follow the same installation and authorization steps that you used for the very first time you installed the software.
In the case that you would need to utilize the software on multiple workstations or in a Multi-Room studio additional licenses must be purchased if you would like to run a plug-in on more than one system at a time.
To offer this convenience, we trust our users to use the service for legitimate reasons and to respect the terms of our license agreement. For a brief overview of how multiple installations are covered by our single-user EULA, head to the link below:
http://izotope.com/store/license_agreement.html
If these conditions are not observed however, we reserve the right to contact our users in order to investigate excessive re-authorizations.