@echo off

:: Admin check
net session >nul 2>&1
if %errorLevel% neq 0 (
    powershell -Command "Start-Process '%~f0' -Verb RunAs"
    exit /b
)

echo =====================================
echo Port status check (Admin)
echo =====================================
echo.

for %%P in (16000) do (
    netstat -qno | findstr LISTEN | findstr ":%%P " > nul
    if errorlevel 1 (
        echo Port %%P : FREE
    ) else (
        echo Port %%P : IN USE
    )
)

echo.
echo =====================================
pause
``