Exception.AppointmentItem and Exception.OriginalDate give you enough
information so you can see which instance was modified/deleted in the
Exceptions collection.

For example, get the Start of the item passed to you in ItemChange() and
compare that to each Exception.OriginalDate in the Exceptions collection.

Exception.AppointmentItem will give you back the recurring instance,
although it's not valid for deleted instances.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"Jason" wrote in message
...
You are right Ken.

The deleted items remain in the Exception collection and have the deleted
property set to true and the Appointment set to null.

The Exception collection contains both modified and deleted items.

With these knowledge, I am still not able to identify which item is being
modified or deleted, and what operation (modification or deletion) is
performed? And worse yet, does the operation apply on the entire series or
just single occurrence?

The Appointment.EntryId is used for the entire series.
NO properties of the Exception object is useful.