Hal Hostetler [MVP-P/I] wrote:

On a bare XP SP2 system, Outlook Express is set as the default email
program. When you install Outlook, ANY version, it will either ask
you if it should be the default email application, or it will just
take over as default whether you want it to or not. This is normal
behavior.

But every time you start it, as the OP says?
--
Brian Tillman [MVP-Outlook]