Recommended to use DdrawEmulateSurface to fix issues when switching resolutions Requires FullscreenWindowMode for videos and may require using dsound.dll as the stub Requires "Hardware Accelerator" option to be disabled Requires DdrawEmulateSurface to allow alt+tab Note: Below are the status of games and whether they work with the Dd7to9 DirectDraw to Direct3D9 conversion feature. The game is either not functional at all or unplayable. The game is functional but has some issues. Some games only support 3D rendering and won't work with this feature. Currently this only works with the 2D APIs.