Just testing this window mode after if ok ill share the fies :)
Windows 10 x86

Cannot attach the files woot

Empire Earth Windowed Mode
i.imgur.com/681XDIm.png
i.imgur.com/mW04ppa.png
i.imgur.com/CWbnsL4.png

i.imgur.com/8qlLkjZ.png
i.imgur.com/4Oc43aH.png


Empire Earth 2 Windowed Mode
i.imgur.com/VGyi6Oc.png
i.imgur.com/O0qkRCh.png

i.imgur.com/YgDUsQ9.png
i.imgur.com/ajromBB.png

I think it looks bad without the native screen resolution. Everything is stretched.

Have you tried Unofficial Patch 1.5 for Empire Earth II? It supports all screen resolutions, and there is "exclusive borderless windowed mode" already available:
https://i.imgur.com/wVfEZvy.png

The problem is, changes in myconfig.cfg are not universal for every screen resolution, especially for those using different DPI scaling.

Good job!
how did you do that? I need that for EE 1 for windows 11. I tried everything I found (in shortcut settings,dxwnd and other programs like that)