Accessing Shared Calendar items

Nov 15, 2011
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Hi Experts,

I've got an add-in in which I would like to access shared calendar appointment items. I 've got he below code, however it doesn't work. As you can see I'm using Redemption. I have full rights to another user's calendar, I can create/delete/update calendar items in his calendar via Outlook 2007. However my add-in can't access the item.

Dim soSession As Redemption.RDOSession
Set soSession = CreateObject("OLR.RDOSession")
Call soSession.Logon(, , 0, 0, 0)
sOrigApptStoreID = m_objAppointmentItem.Parent.StoreID
sOrigApptEntryID = m_objAppointmentItem.EntryID
origMeeting = soSession.GetMessageFromID(sOrigApptEntryID)

GetMessageFromID throws below exception;
"Error in IMAPISession.OpenEntry: MAPI_E_UNKNOWN_ENTRYID"

However the EntryId is correct, I use OutlookSpy to verify the EntryId.

Please help, let me know what I'm doing wrong?


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