nothing wrong with running a d3d/Dx wrapper and nglide. (The DXWND wrapper said by the author works with nGlide)
I haven't experimented too much with using two wrappers, I use one or the other, or none.
If I could, I'd use dgvoodoo since it has a DX wrapper built in with a glide wrapper. But the DirectX portion needs calls to files names hacked into the eaw.exe, actually name changes for the ddraw.dll I think.
In other words its a pain to set up, so its been rejected by me for now.
Same with DXWND wrapper , alone its a bit demanding and it jitters the planes at medium distance, but I understand with nglide it works good. But thats two wrappers, and I'm not interested in myself using two at the moment.
As far as my limited help doc info on the DXWND, I had the text in there for how to get to the main tab settings from the dxwnd start window. its a right click and then select modify on the eaw.exe icon. I expanded the text a little bit now, hope it helps.
The D3DWindower, its small and light weight, and I honestly only used it for like a month or two when i had windows 7. It runs in compatibility mode cause its an old exe. But if it works for you thats great. I should expand on my help doc notes about it, if I ever run with it again I will.
EDIT:
I remember I dropped using the D3DWrapperV1.88 cause I found a registry fix for windows 7 directdraw colors. The eaw menu screens where toasted so the fix was part of the Window OS , just undocumented, but works.
Now that I'm on win10 I can just run nGlide with opengl or vulkan api's (I think thats what it supports). Thats another not well documented wrapper I used in the help doc as well.
Right now I'm just using Win10 for some EAW games and DXWND for testing with other EAW Games.
DXWND is such a resource hog, I need to find a bunch of tab settings to help remove that plane jitter, and this might take useing the expert tab settings. Thats if the author of the Wrapper doesn't tweak/optimize it better for DirectDraw-D3D combo displays as EAW uses both in the flight screen as far as I can tell.
EDIT2:
There is a OpenGLide wrapper made in 2004 for glide 2.xx games (that restricts the use to EAWv1.2 and EAWPRO, as the other un-offical updates are v1.xx use glide3.xx), its light weight, and you only need the dll and configure file I believe. You need OpenGL to use it, and it cleans up Terrain Shimmering just like the olden days. I used it and may go back to it. I just wish a newer version existed for win10 (but it does work on that os).
https://eaw.neocities.org/troubleshoot.html#wrapI just found this site trying to relocate openglide....the last openglide is listed.
http://www.sierrahelp.com/Utilities/DisplayUtilities/GlideWrappers.html