How to add an internet calendar (ICS) to Outlook 2010
Figure 1
With Outlook 2010, you can subscribe to an "Internet Calendar Subscription (ICS) address". Note that some
sites refer to this feed as "iCalendar" or "iCal" format.
To subscribe to an ICS feed, in Outlook 2010 select "Calendar" from the lower-left pane (see Figure 1).
In the left pane, you should then see "My Calendars".
Figure 2
Right-click on: "My Calendars", navigate to:
"Add Calendar" then select: "From Internet..." (see Figure 2).
Figure 3
In the pop-up box (see Figure 3) paste (or type) the address for the calendar you want to subscribe to.