Ok I need something. My problem is : I want when I start my UnityProject.exe, it should start in -popupwindow but not with the shortcut of my .exe but in my script of my project.
So, not another project who start my UnityProject.exe etc etc…
It is possible to start my project with this command line’s argument " -popupwindow " from my script instead of use a shortcut of my .exe and put my argument into it.