iCalendar Add-in for MS Outlook (single user license)
Windows 98, ME, 2000, XP, or Vista
MS Outlook 2000, 2002 (XP), 2003, or 2007
iCalendar for MS Outlook. Finally, empowering Outlook users to subscribe to
multiple iCal calendars available from numerous sources. You'll love the functionality
and the efficiency created by subscribing to calendars maintained by one, and used by many.