My "solution" didn't work !
I used "*.dll" patch, and if i didn't change anything after installation, game launch correctly.
But if i copy the "new" *.dll in Bnet folder, game doesn't want to launch properly.
I saw much user on the FR blizzard forum who have the same problem, and they don't know how repair (on the legitimate licence).
I use the VM solution now, but *.dll solution works perfectly and we don't have to do anything to play ... So if someone know how to do it in 100% case, i'm interested !
Thanks at all