You mean when choosing Insert-> Hyperlink?
You can't; it's based on the history as stored in Internet Explorer.
If you always need to insert the same hyperlink you can also create an
AutoText entry instead.
--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more
http://www.msoutlook.info/
Real World Questions, Real World Answers
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"Robert Judge" <(E-Mail Removed)> wrote in message
news:95206BD6-1EFC-4ABA-B441-(E-Mail Removed)...
> In Outlook 2003, when I type "http://" into an email message, Outlook
> automatically suggests a certain URL that I have used before. However, I
> would like it to default to a different URL. How do I tell Outlook to use
> a
> certain URL whenver I try "http://"?