Error: Unable to cast COM object of type 'System.__ComObject' to interface type 'LFSO92Lib.LFFolder'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{AA4F7DE3-68F7-4607-BFD9-82CE54DA5E8C}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).