This document outlines the system requirements for QuickTime 6.
Macintosh
Windows
Note to QuickTime Pro Users
QuickTime 6 replaces earlier versions of QuickTime. A QuickTime 6 Pro key is required to unlock Pro features of QuickTime 6. If you wish to use a QuickTime 4 or 5 Pro key, you need to use an earlier version of QuickTime, which you can download from the Apple Support Web site (http://www.info.apple.com/usen/QuickTime/).