Media technologies are listed in the Autoplay Control Panel item in Windows Vista even though the technologies are not installed

When you click the Autoplay Control Panel item on a computer that is running Windows Vista, media technologies are listed that are not installed. For example, HD DVD movie and Blu-ray Disc movie are listed even though the hardware devices that are required to support these technologies have never been installed.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.