I used a modified .exe for MGS V to change my aspect ratio to 21:9. There is a very detailed forum here where I used to download the modified .exe from:
With the latest update, it looks like I’m going to need to download cheat engine and modify the .exe myself.
Does anyone know if cheat engine runs in the background when not needed? May this or its mere presence trigger any anti cheat detection? Namely EAC or VAC?