Let me clarify again. I need to be able to identify the item that was
modified or deleted, in other words, I need the ID of single occurrence,
otherwise I can not sync it with other applications. Unfortunately, the ID
is not there. EntryID is just for the whole series. There is no ID for each
occurrence. (ID may be hidden) There is no way to know which item was
modified or deleted. Although it does not matter to work on Outlook itself
as you have done, there is no way to sync Outlook's single occurence with
other application. We can only fall back, treating recurrence as a whole.

In addition to this limitation, Outlook's recurrence design also has another
big problem.

"Ken Slovak - [MVP - Outlook]" wrote in message
...
I fail to see a problem. Iterating Exceptions is not a big deal, nor is
getting recurring instances if you know the start date of the instance or
are incrementing your iteration of the recurrences collection. I do that in
code for a number of my applications. When you get the event you have the
item being changed, it's not a big deal to match it to something in
Exceptions.

If an item is deleted you can't get AppointmentItem for it, if not deleted
you can get AppointmentItem and then check for LastModifiedTime if you
want to see when the Exception was modified.

--
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
...
I need to know what is happening right now, not the past history. I need
current item and current action. Look like they are not there. I'd have to
give up on this.

When an item is changed, the original date will be persisted into
Exception object. When another item is modified, there will be another
Exception object with original date. How do we know which is the newest
item modified, or deleted?

Going through Exceptions collection could be time consuming.