Comment by anthk

So is the jump between W9X and NT based OSes, both in the kernel, graphics modes (GDI, Direct Draw vs Direct3D to draw the desktop, compositing window managers...) and the like. Specially after Windows 8 where Direct Draw it's slow as hell and you need to use WineD3D which runs ddraw.dll on top of OpenGL. But you can use Win32 on both.