OID registry?

There's probably a very simple answer to this question: is there a central
registry of interesting S/MIME-related OIDs? In particular, I'm looking for
the arc under 1.2.840.1015, which doesn't appear in any of the drafts or
the registry at domen.uninett.no.

TIA,
-Paul

--
Paul Robichaux <paul(_at_)ljl(_dot_)com>  |  LJL Enterprises, Inc. | 
<http://www.ljl.com>
Author, _Jazz Up Your Web Site In A Weekend_ (ISBN 0761511377)
         _Windows NT Server 4 Administrator's Guide_ (ISBN 0761507515)
On the way: _Managing the Windows NT Registry_ (O'Reilly; Feb 98)