Microsoft has released an updated version of its Camera Codec Pack for Windows Vista and Windows 7 allowing users to view RAW files from more than 120 DSLRs. Using Microsoft's Windows Live Gallery 2011 software, RAW files from compatible cameras can be edited, with adjusted images stored as either JPEG or JPEG-XR files.

A full list of compatible cameras and a download link for the codec pack can be found here

Click here for more information about the codec pack