DxWnd

DxWnd: Open games and other programs that only run in full screen in a custom window mode

DxWnd is a handy tool that allows you to run games and applications which only work in full screen, in a custom window mode.

You only need to drag and drop the app or game executable on top of DxWnd’s main window to start using it in windowed mode.

While the program is not active you can run your apps and games just like before, in full-screen mode. However, be aware some applications might not run successfully in window mode.

Regarding settings, DxWnd lets you optimize the CPU, as well as Video, Registry, Hook, Video and a few more categories to ensure you get the best performance while running games and applications in windowed mode.