Brian Tillman, you wrote on Mon, 13 Feb 2006 21:36:30 -0500:

The news functionality isn't shared at all, since Outlook doesn't "do" news.

I know that Outlook can't handle the NNTP protocol for news. I meant
that Outlook is using OE as newsreader by default.

The HTML rendering is shared,

Therefor Internet Explorer is required.

and there might be other parts

I'am quite sure Outlook 2002/2003 doesn't need Outlook Express really.
There is an article in Microsoft's KB [1] that describes why Outlook
requires Outlook Express. But this article applies to Outlook 2000 and I
might not find a similiar article for Outlook 2002/2003. Do you know
such an article? If so could you post a link? Thanks in advance!

"Outlook 2000 requires Outlook Express"
[1] http://support.microsoft.com/?scid=k...0076&x=21&y=14

--
Best Regards
Christian Goeller