How can I get an image into the signature file in OWA?

If you are running Exchange 2003 SP2 on Windows 2003 SP1, an image file can be added the OWA Signature after the S/MIME control is installed on the client machine. Refer to the following Microsoft knowledgebase article for details https://social.technet.microsoft.com/Forums/en-US/exchangesvrclients/thread/1bb882b3-03dc-4085-ae06-a787fd76fd39/