I'm on win 7 x64, intel i5 / nvidia 760
all updated

when i launch it, windows switch from AERO to classic, and... nothing
when i look in taskmanager, i see a no "moving" painkiller :S

waiting change nothing...

right click the desktop short cut
click compatibility tab
click the tick box "run this program in compatibility mode for:"
select "windows xp (service pack 3)" in the drop down menu

it worked for me

Thank you for your help, but alas that don't resolve my problem :(
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Correction, si je met en win 98/ME, ça fonctionne! merci !

glad to hear you resolved the issue, happy gaming