Adobe has released a fix for Audition 3 for users of Windows Vista 64-bit.
With the release of Service Pack 1 for Microsoft Windows Vista 64-bit, Adobe Audition will fail to launch if it has not yet been activated. This will also affect users who want to use the 30-day trial of Adobe Audition. Download this file and run it to allow Adobe Audition to launch correctly on Windows Vista 64-bit with Service Pack 1 or later.