NUL Character in message body locks up Outlook/Outlook Express

Hello, A number of Microsoft mail programs fail when they attempt to download a message containing ASCII NUL in the message body. The clients we tested are: Outlook Express 6.00.2800.1106 Outlook 2002 10.2627.3501 SP-1 Outlook 2003 11.5608.5606 Once the client attempts to download the particular...