Actually we have been talking about something like this on the Mac side for
quite a while, and things are currently afoot. It is not a file, but a way
to query a system-wide database, and it is for more than just MIME mapping
(email address, news server, etc.).
-- firstname.lastname@example.org http://www.astro.nwu.edu/lentz/plan.html "You have to push as hard as the age that pushes against you." -Flannery O'Connor