If you have suffered for years not being able to see Thumbnails of your RAW files in Windows Explorer, well here is the answer.
The guys at Microsoft have finally woken-up and have released a free Codec that can be easily installed on any of the later versions of Windows (Vista, 7 and 8), so when you open a folder of photos, you no longer see a page full of pansies like the screen shot on the right >
Once you have installed the Codec, you will see a page of Thumbnails like this screen shot >
Hooray for Microsoft.... good things come to those who wait!
Here's the Microsoft Download Link
I wonder if Apple have full camera support for Thumbnails in Finder yet?