>Is there anything in BIND 9 that corresponds to the WriteAuthorityNs
>registry in Windows DNS so that NS records will not be written in
>non-referral responses?

Take a look at the "minimal-responses" boolean option.

If you're planning to do this for anything but performance/resource
reasons, though, chances are you're doing something evil/nasty/illicit
with your DNS infrastructure, which will eventually come back to haunt
you or whomever inherits that infrastructure...

- Kevin