Thanks again, BD.
I went to filext.com and found something really interesting there:
http://filext.com/info/showthread.php?t=412
If you run the bat file that generates a text file of all file associations, you also get a listing of the programs associated with the file types. Very cool.
FYI: the text file was written to \windows\system32, not the desktop where the .bat was stored.