[AccessD] Unlock an MDE

A client has an MDE and has lost its corresponding MDB. I vaguely recall
that there is some sort of rescue technique. It wouldn't mattered if what
came back was obfuscated code; that could be dealt with.
Any tips or pointers? A commercial package would be OK if that's the only
method. The alternative is reverse-engineering it, which in the
circumstances wouldn't be all that terrible. Like most apps, it contains a
lot of obvious code and a little rocket science.
TIA,
Arthur
Son of Uther Pendragon,
Defeater of the Saxons,
Lord Over Alllll England, and
King of the Dorks