[Iska]

Только кавычки ещё нужны.

Конечный примерный вид:

Код:

@echo off
setlocal enableextensions enabledelayedexpansion

set sImageName=notepad.exe

for /f "usebackq delims=" %%i in (
	`wmic.exe Process where "Name='%sImageName%'" get ExecutablePath /value ^| find.exe "ExecutablePath"`
) do set "s%%i"

if defined sExecutablePath for %%i in ("%sExecutablePath%") do set sFolder=%%~dpi
echo [%sFolder%]

endlocal
exit /b 0