Scenario - You're booting Atomiswave/Naomi/Dreamcast games from GameEx via Demul. However, you have to set up the controls each time. Solution: This approach saves the key configs for each game when you exit Demul. Use: Run game. Set up controls via Demul menu. Exit Game. Next time you load that game, the controls will be recalled. How to: Make a folder somewhere for your individual game controls Copy this text and make a bat file: Change the User Variables Section to match your system. Save it as a batch file (use notepad - put .bat at end of filename) In your command line for GameEx, enter the following: {Path and bat} "[ROM]" "{system name}" For e.g.: C:\GameEx\AHKS_BATS\Demul_load_save_controls.bat "[ROM]" "naomi" Copy text below into notepad and save as "[Mapping Off] Exit (Process Close) - Demul.ini" in C:\GameEx\CONFIG\EMULATORS Finally, under Advanced config, select this file: Hope this helps and let me know if buggy!