Importing ics file to an Outlook.AppointmentItem

Question

I have an Outlook 2007 add-in that is trying to import ics files into Outlook.AppointmentItem objects so that I can read attributes about certain appointments. Currently I am not able to read the ics back into memory. Any suggestions on what I am doing wrong.

Outlook.Application app = new Outlook.Application();
var item = app.Session.OpenSharedItem("C:\\meeting.ics") as Outlook.AppointmentItem;
string meetingBody = item.Body; //<--*my item is null*

Thanks