Can I share my Outlook 2007 Calendar with Outlook 2003 users?

[net_user]

on our network all users have outlook 2003, we are about to upgrade 3/4 of our computers to office 2007

can a user that uses outlook 2007 share their calender with someone that uses outlook 2003?

this is in an exchange environment

Edited September 1, 2009 by net_user