GOT IT!!!
I had to uninstall everything related to OGG: ffdshow, K-Lite pack, and Vorbis directshow filters.
Then, and here's the key--restart the computer, even though I was never told to. Apparently, some files remain on until rebooting that screw up installation.
After the reboot, I installed the full K-Lite pack. Now, ffdshow shows up in Windows Media Player properties and the sound loops!
Thanks, Mystery, for all of your help!!!