It worked.... finally. Thanks for the good work. I am running 2008 32bits, .net 3.5 framework and my Application Pool is on Classic mode. I just copied files to my bin and registered Interop.LPICOM_6_0Lib.dll (from my bin folder, running regsvr32 Interop.LPICOM_6_0Lib.dll) and voila ! (nothing else had...