text_combined: mark hammond nkpmuffqskippinetcomau unfortunately got error invalid class string pywintypesiid strange appears object throwing error code e_nointerface generally expected error code qi mention supporting idispatch interface inherits idispatch snippet idl odl uuid8d2ad79b1add4181bad4ff0672a9b6e3 version10 dual nonextensible oleautomation interface iviewdataview idispatch id0 hresult getdatasetoutretval long isnt thing ive idea problem mark jose sun apr 27 2008 1153 mark hammond wrote hi mark thanks answer tried using iviewdataviews uiid like probably naive way viewqueryinterface8d2ad79b1add4181bad4ff0672a9b6e3 produces error line com_error 2147221005 invalid class string none none hrm try passing pywintypesiid8d2ad79b1add4181bad4 ff0672a9b6e3 iid read thing win32com without using comtypes would need somehow add custom interface also read exist tools automate process far could find start yeah interface doesnt support idispatch best bet indeed comtypes code stands sort simple issues likely end e_nointerface exception mark _______________________________________________ pythonwin32 mailing list kpitckaew45pythonorg httpmailpythonorgmailmanlistinfopythonwin32 _______________________________________________ pythonwin32 mailing list kpitckaew45pythonorg httpmailpythonorgmailmanlistinfopythonwin32 fri 08 aug 2008 122001 1000 pythonwin32 queryinterface fails object passed vb