one nice thing about this solution is that it *requires no standard action*.I'm pretty sure the answer to #1 is "no". However, my intuition is that the answer to #2 is "yes". I don't have an opinion on #3. The code isn't that hard to write. But should a MIME hander have to care?
<XML i-am-a-document-metadata-dtd> lots of gory header-like stuff </XML> real content goes here)
-- Harald Tveit Alvestrand, EDB Maxware, Norway Harald.Alvestrand@xxxxxxxxxxxxxx