Not in the case of messages sent from AOL. I receive messages from other people
in
HTML format, and my mail package (Netscape) handles it just fine, but if I get
one
from an AOL user, it won't.


That is a bug in your software. Your software controls whether or not an Email
is appended on a reply. If it trips on AOL's (or anybody's) Email, it is a bug
in your software. Your software is completely in control of how it handles
your response (whether it appends the original Email or not).

Jose

--
(for Email, make the obvious changes in my address)