Пошагово пояснить смысл скрипта

@ECHO OFF
if NOT exist d3d9.dll (
    set USE_INJECTOR=USE
)
 
if NOT exist ENBInjector.exe (
    set USE_INJECTOR=SKIP
)
 
if "%USE_INJECTOR%"=="USE" (
    ECHO Starting ENB injector...
    START ENBInjector.exe
)
 
ECHO Starting game...
START /W skse_loader.exe
 
if "%USE_INJECTOR%"=="USE" (
:WAIT_FOR_TESV_START
    tasklist /FI "IMAGENAME eq TESV.exe" /FO LIST | find "PID" >nul
    IF ERRORLEVEL 1 (
        ping 192.0.2.2 -n 1 -w 2000 > nul
        GOTO WAIT_FOR_TESV_START
    )
    ECHO Waiting for game exit...
) else (
    rem Nothing.
)
if "%USE_INJECTOR%"=="USE" (
:WAIT_FOR_TESV_STOP
    tasklist /FI "IMAGENAME eq TESV.exe" /FO LIST | find "PID" >nul
    IF ERRORLEVEL 1 (
        GOTO TESV_STOP_CONTINUE
    ) ELSE (
        ping 192.0.2.2 -n 1 -w 2000 > nul
        GOTO WAIT_FOR_TESV_STOP
    )
) else (
    rem Nothing.
)
if "%USE_INJECTOR%"=="USE" (
:TESV_STOP_CONTINUE
    ECHO Stopping ENB injector...
    taskkill /FI "IMAGENAME eq ENBInjector.exe"
    taskkill /FI "IMAGENAME eq enbhost.exe"
) else (
    rem Nothing.
)