Thanks Paul, but unfortunately my testing confirms that this excellent
script will NOT do what I want.

Yes, it does take pure text and HTML code from a saved file and create a
complex message which can be read on a PC.

But NO, it does NOT maintain the "clean" HTML code I want to send.
Instead it allows Entourage to create its own HTML version of the code!
I did NOT view the page before sending, as warned in the read me file,
yet my code was NOT transmitted without modifications.

I tried both methods, but as expected they sent identical messages.

Perhaps Adam can confirm whether my goal is indeed possible to
accomplish with Entourage.