Hi all, i have the following exception in my Outlook addin.
System.Runtime.InteropServices.COMException (0x80040155): Interface not registered (Exception from HRESULT: 0x80040155) at Microsoft.Office.Interop.Outlook.MAPIFolder.get_Folders()
After installing my addin:
in Win XP + Outlook 2003 it works fine, Win XP + Outlook 2007 also fine, however in Vista + Outlook 2007 if fail with exception above.
Any ideas???
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