QuickTime Alternative will allow you to play QuickTime files (.mov, .qt and other extensions) without having to install the official QuickTime Player. It also supports QuickTime content that is embedded in webpages.

Update: Link fixed Features:

- Media Player Classic [version 6.4.9.0 rev 611]
- QuickTime Codecs [version 7.0.4.80]
- QuickTime plugin for Internet Explorer
- QuickTime plugin for Opera/Mozilla/Netscape
- Extra plugins for QuickTime
- QuickTime DirectShow parser
- QuickTime DirectShow decoder wrapper
- CoreAVC
- CoreAAC

What's New:

- Updated Media Player Classic to version 6.4.9.0 rev. 611
- Downgraded QuickTime components to version 7.0.4.80. This restores Windows 2003/XP64 compatibility.
- Replaced QuickTime DirectShow parser with a new set of filters. These should perform better in WMP and other players. No DirectShow filters are required to play QuickTime files in Media Player Classic.
- Removed localized QT components, making everything English only. This reduces the installer size with 1 MB.

Download: QuickTime Alternative 1.71 Final