Problem while casting to AppointmentItem type


K

kiranpatil1983

Hi,

I am using following code to create appointment items in Outlook:

private Microsoft.Office.Interop.Outlook.Application _Application;
_AppointmentItem oAppointmentItem =
(_AppointmentItem)m_Application.CreateItem(OlItemType.olAppointmentItem);


When i try to cast the object to _AppointmentItem type (2nd line)it throws
following exception:

Unable to cast COM object of type 'System.__ComObject' to interface type
'Microsoft.Office.Interop.Outlook._AppointmentItem'. This operation failed
because the QueryInterface call on the COM component for the interface with
IID '{00063033-0000-0000-C000-000000000046}' failed due to the following
error: No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE))

Any idea why this code doesn't work on some machines with Outlook2003?
 
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K

Ken Slovak - [MVP - Outlook]

Where is _Application instantiated?

Try using Outlook.AppointmentItem and see if that works. If not, do those
problem machines actually have the PIA's installed?
 

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