In the Outlook 2003
Goto
1 . Toolsoptionsother(Tab)
Check if there's option Checked "Check if outlook is the default E-mail
Client"


Frank D. Nicodem, Jr. wrote:
I use Outlook primarily for the Calendar application. My default E-mail
application is Outlook Express. Yet every time that I run Outlook to look
at my calendar, it resets *itself* as the default E-mail program! I do not
want it to do that, but I can't find a way to stop it.

I've used Internet Options to set Outlook Express as my default E-mail; and
I have Outlook Express constantly checking, as well. But Outlook keeps
changing it anyway. How do I stop it from doing that?!?!?
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Frank D. Nicodem, Jr.