No such feature.
You can use a reg hack to force the Windows Address Book to use your Outlook
Contacts as its data source, if you want:
http://www.slipstick.com/contacts/oeshare.htm

Signature
Russ Valentine
[MVP-Outlook]
>I want to use Outlook Express 6 for my mail and Outlook(OfficeXP) for my
> calendar. I want both to use the same address book / contacts with Windows
[quoted text clipped - 3 lines]
> Also how do I turn off the security check on Outlookwhich comes up every
> time when my handheld tries to HotSync with it.