Thanks a lot for your detailed answer. Yea, while searching, I've run into informations about <> keys working on different level, but it was very vague and I hadn't idea what do make out of it. The game I'm interested in definitely works with DOS's keyb - numbers are working flawlessly (and stop doing so, if I skip keyb rover.sys us line). So, I understand that creating "custom" keyb.sys with those keys mapped would work? That's great to hear! Now I only need to find how the hell one creates DOS's keyb (duckduckgo/google time) /Estel