OK soo thank you very mutch I manage to fix that just simply create a project in 4.7 and copy PCLaunch.rc in my 4.8 project (I create the …/…/ressources/Windows/balalaba.rc). I modify the code and generate the solution. After I just package the game in 64 bits for windows and that work perfectly !!! 
But is that normal that I can’t have my my .RC file when I create my project in C++ in 4.8 ?
Thank you per advace,
Charles