A free app for Windows, by Microsoft.

Microsoft Camera Codec Pack is the first official codec pack from Microsoft that can play the images in RAW format from within the Windows explorer. This package allows you to do so without having to open another program. This is a great advantage because this allows you to preview RAW images from within Windows Live Photo Gallery or from any application that uses Windows image codecs (WIC).

When you install this package you will be able to view the native file format of a great variety of photograph cameras directly from Windows Live Photo Gallery or from any application that uses Windows image codecs (WIC).

The installation of this package is very quick and easy, so if you are interested in taking photos in RAW format you should download it right away.