Newer versions of MSWord no longer install installable fonts. (At least
Word 2003 doesn't).  This was probably a result of font vendors who
didn't know what they were doing getting upset over their fonts,
mis-created as "installable" getting undesired free distribution.
Another major drawback was the concept of a document writer Doing
Something I didn't know about to MY system (installing a font).

See this good description - look at the sections titled "embedding bits"
and "embedding fonts"
http://www.truetype.demon.co.uk/ttglosse.htm

AFAIK, there's no way to extract an embedded font from an MSOffice document.

There's probably some hokey way to get the font to your readers - such
as a hot-link to a website IN the document, where the website provides a
self-installing font with an .exe file or script ...

 - Character