http://bugs.winehq.org/show_bug.cgi?id=58358
--- Comment #5 from Chris Cooksey ccooksey@mindspring.com --- I figured out how to build and install wined3d.dll.
It was the set of commits on Feb 28th, 2025 that prevents Dungeons and Dragons Online from using DX 9.
I will experiment some more, but it looks like these changes were intended to switch from OpenGL to Vulkan. That is just speculation on my part.