tim golden cggctimgoldenmeuk king simonnfhd78 wrote hello developing application amongst things exports files launches associated applications using osstartfile also uses webbrowseropen see uses osstartfile everything works pc pcs office tested however released first version users reported unhandled exceptions seem coming osstartfile examples snipped unless someone comes something authoritative avenues try 1 according httpgroupsgooglecoukgroupmicrosoftpublicplatformsdkshellmsg943b9844d480b029 shellexecute url invokes shell extension handler operate apartment threading mode ie youre using com whether like exactly affects situation im sure couldnt say especially since seem tried route youre specifying com threading model 2 kind consistency ie one user always fail csv another fails kml im sure stuff youll gone im trying eliminate unknowns tried obvious lack associations comes different message 3 osstartfile basically calls shellexecute appropriate params alternative could use findexecutable win32api module pywin32 extensions coupled subprocesscall something like import win32api import subprocess filename ctemptestcsv _ exename win32apifindexecutable filename subprocesscall exename filename workaround undoubtedly wont work urls least might take somewhere cant get thing working tjg _______________________________________________ pythonwin32 mailing list kpitckaew45pythonorg httpmailpythonorgmailmanlistinfopythonwin32 thu 07 aug 2008 221814 0100 pythonwin32 osstartfile mysteriously failing