[Groff] eqn plugin for MS Word??

[Frank Jahnke]

I am writing a highly-technical review article with a colleague who
knows only MS Word on the Mac (and so is not particularly
computer-savvy).  I've agreed to use Word, for which I don't much care,
but it seems to be the only way to go at the moment.  Of course I am
doing the parts that have the heavy math -- in eqn (which I would
otherwise use) this would be easy, but Word's equation editor is pretty
weak.

Is anyone aware of a eqn plugin for Word?  Or something like it?

I know the OO.o has an equation mode that is very similar to eqn, but
I've simply not had very good luck with OO.o for these sorts of
documents when sharing with Word is necessary.

Frank