I installed SFCOP from cd, patched it with 2.5.6.3, in the sfc.ini I set the value of HiRes=6 (inder the 3d section of the ini file) which sets the game to 1080p, and set the compatibility mode to windows 7 with about everything checked. Game playes beautifully. I just would love that old version that had TR beams and plasma D were a direct fire weapon LOL. Enjoy sfcop on Windows 11. Yeah!