Are you running an old version? That DLL is packaged in the zip right next to the Mindustry executable file; you shouldn't have any issues with it.
I know, I know but it don't work and I don't know why, that is why I'm here. And as Suros says, the difference between my both pc is that my pc who reborn doesn't have its files.
So, I'll try his solution and I'll tell if that resolve my problem.
Thanks anyway
