Xiph QuickTime Components (XiphQT) are collection of QuickTime 'plug-ins' providing support for the xiph.org media compression formats.
Please see http://www.xiph.org/quicktime/ for more information.
Win32 Installation
Copy XiphQT.qtx file to the 'QTComponents' sub-folder of your base QuickTime installation directory. Typically it means:
C:\Program Files\QuickTime\QTComponents
You may need to create the 'QTComponents' folder if it doesn't already exist in your QuickTime installation.
Note
If you have installed on your machine the old OggVorbis component from
http://qtcomponents.sf.net/ you will need to remove it before installing XiphQT!
Possible locations of the OggVorbis.qtx file include:
Or you can just search for OggVorbis.qtx file on your system hard drive.