See http://support.microsoft.com/?kbid=834008 "You cannot send a
document as an e-mail message from an Office 2003 program".

jskinn wrote:

For some reason, the Send To Mail Recipient as Attachment option isn't
available to me in any Office 2003 application. I tried adding the [Mail]
prefs in win.ini as suggested in another article but it still won't give me
that option. It does have "Send to mail recipient as Adobe PDF" which I don't
want. (Fresh install on a new machine). I didn't install Outlook because I
use something else. Do I HAVE TO install Outlook to get this to work?