>It is on my system (see attached image).

Just to be sure, here is the image.

>What does Windows itself show in its registered file types? http://technet.microsoft.com/en-us/library/dd560745(v=ws.10).aspx

In there, it shows as you see it.

>Do you have Office 2007 or later installed on your system?

I have Office 2010. Word is 14.0.6123.5001 (64-bit).