[alpap]

а так все-таки?

Код:

@echo off
set "f=Диск:\Папка\SADXModLoader.ini"
set "H=HorizontalResolution"
set "V=VerticalResolution"

for /f "delims=" %%a in ('wmic path "win32_desktopmonitor" get ScreenHeight^,ScreenWidth /value^|find "="') do set "%%a"
<"%f%">$ (for /f "delims=" %%a in ('more') do @(
  echo %%a|>nul find "%H%" && echo %H%=%ScreenWidth%
  echo %%a|>nul find "%V%" && echo %V%=%ScreenHeight%
  echo %%a|>nul findstr /v /c:"%H%" /c:"%V%" && echo %%a
 )
)& >nul move $ "%f%"
pause

Здесь путь настоящий укажите: set "f=Диск:\Папка\SADXModLoader.ini"