outlook add-in throwing exception

M

Mani

Hi,
I have created a add-in for outlook using vb.net.
Programatically it adds contacts to the Contacts section
of outlook. This works fine on some of the XP machines (OS
and also office version), but throws exception on some.
For each contact, I have created a user property and
assign the system GUID value to it. while assigning this
value it is throwing the
exception: "System.Runtime.InteropServices.COMException
(0xFDD20005): Exception from HRESULT: 0xFDD20005 at
Outlook.UserProperty.Set_Value(Object Value)

oProperty.Value = GUID.NewGuid()
(oProperty is the variable defined of type
outlook.userproperty and GUID is a built-in function in
the System namespace)
Can anyone shed some light on whats the problem could be.
Thanks in advance. Mani
 

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