Hi All,

Whenever I am trying to read linked contacts, recipients ands user
properties from Outlook appointment items,

i am getting below exceptions:

1)while reading linked contacts

Unable to cast COM object of type 'System.__ComObject' to interface type
'Microsoft.Office.Interop.Outlook.Links'. This operation failed because the
QueryInterface call on the COM component for the interface with IID
'{0006308A-0000-0000-C000-000000000046}' failed due to the following error:
No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE)).
at Microsoft.Office.Interop.Outlook.Links.get_Count()

2)while reading user properties

Unable to cast COM object of type 'System.__ComObject' to interface type
'Microsoft.Office.Interop.Outlook.UserProperties'. This operation failed
because the QueryInterface call on the COM component for the interface with
IID '{0006303D-0000-0000-C000-000000000046}' failed due to the following
error: No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE)).

3)while reading recipients

Unable to cast COM object of type 'System.__ComObject' to interface type
'Microsoft.Office.Interop.Outlook.Recipients'. This operation failed because
the QueryInterface call on the COM component for the interface with IID
'{0006303B-0000-0000-C000-000000000046}' failed due to the following error:
No such interface supported (Exception from HRESULT: 0x80004002
(E_NOINTERFACE)).
at Microsoft.Office.Interop.Outlook.Recipients.get_Count()

Any idea why this is happening only on my machine and working fine on all
the other test machines.

I have Outlook 2003 and I have installed all the office updates.

Please Help....