I found this for PCars that i will test soon : http://forum.projectcarsgame.com/showthread.php?23045-Command-Line-Launch-Options Rfactor2 : http://www.internationalsimracing.com/forum/index.php?topic=2292.50;wap2 IRacing : http://canardpc.com/forums/threads/...elle-est-très-cher-mais-y-a-bien-pire/page151 Assetto Corsa : ??? And R3E? What's about multithreading?