I don’t usually post about Apple software, but the QuickTime Player is installed on many Windows computers, so it falls into a kind of grey area.
Apple recently released an update for QuickTime to address at least nine vulnerabilities it exposes on Windows 7 and Vista computers. Anyone who uses QuickTime on Windows 7 or Vista should install the new version of QuickTime as soon as possible.
I no longer have QuickTime installed on my main computer. Downloaded QuickTime media files play in a combination of VLC and Windows Media Player. There’s no QuickTime player plugin in my my main web browser, either, but I don’t really mind not being able to see QuickTime media embedded in web pages. If I really need to see that content, I can always download it.
If you’re not sure whether you have QuickTime installed, or want to find out how QuickTime media is played on your computer, you can try playing these QuickTime sample media files.