Followed your advice to use PicoScope 3000 SDK, console is now Ok
Thank you
Rinus

Hardware picoscope 3204 software PicoScope6_r6_7_28.exe and SDK build from PS3000asdk_r10_5_0_19 Console with Visual C++ 2010 on window 7 linked against ps3000a.lib as result i get a console window with the picoscope logo and: PS30000A driver example program Opening device ... Handle: 0 Unable to op...