Open a specific TCP port on the Windows Firewall (Windows Vista+)

open-firewall-port.bat

:: open port (first argument passed to batch script, second argument is description)

:checkPrivileges
  net file 1>nul 2>nul
  if '%errorlevel%' == '0' ( goto :gotPrivileges ) else ( goto :getPrivileges )

:isNotAdmin
:getPrivileges
  echo You need to be admin running with an elevated security token to run %0
  goto :exit

:isAdmin
:gotPrivileges
  netsh advfirewall firewall add rule name="Open Port %1 for %2" dir=in action=allow protocol=TCP localport=%1

:exit
  ::pause
  exit /b