Okay, I was stupid. That said, here is what I did.
From a reference in one of Woody's newsletters, I edited the Registry (I think the actual article was on Zdnet). Doing so gave me toolbar pushbuttons for selecting HTML or Plain Text for messages, and that is present and works OK, but the side effect was to make Word unavailable as e-mail editor.
I want it back.
When I try to create a new message, I get a message saying Word is unavailable.
I did not record any notes of what I did since everything "seemed" to be OK at the time I did it. I don't even know which Hkey I changed.
Is anyone out there familiar with this or something similar?