Here is an update. Nikon directed me to the following site to get the latest
version of nefcodec.dll:
http://www.nikonimglib.com/nefcodec/index.html.en
I installed this update and the problem appears to have gone away.
Interestingly enough when you try to update the codec from within Capture NX
it reports back that no updates are available.
Nikon also makes a point of saying that they are not responsible for WMP.
Thanks again for the help.
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Specbus