How do I use AutoSignature when emailing from Excel?

From: frauschieze (frauschieze_at_discussions.microsoft.com)
Date: 09/23/04 

Date: Thu, 23 Sep 2004 12:29:09 -0700

I need to have a confidentiality notice on the bottom of all my outgoing
email for work. I use the AutoSignature feature in Outlook for this. It
doesn't work if I email directly from Excel. How can I fix this?