shields.bat - block all inbound connections on boot or with 'up' and 'down' commands

@echo off 

:: shields.bat - block all inbound connections on boot or with 'up' and 'down' commands
:: save somewhere permanent and run 'shields.bat install' to raise shields on boot

goto argparse

:up
netsh advfirewall set %FW_PROFILE% firewallpolicy blockinboundalways,allowoutbound
EXIT /B 

:down
netsh advfirewall set %FW_PROFILE% firewallpolicy blockinbound,allowoutbound
EXIT /B 

:install
set SHIELDS_BAT=%~fp0
schtasks /create /tn "shields.bat" /tr %SHIELDS_BAT% /sc onstart /rl highest /ru system
EXIT /B 

:uninstall
schtasks /delete /tn "shields.bat"
EXIT /B 

:argparse 

set FW_PROFILE=currentprofile
if "%2"=="all" set FW_PROFILE=allprofiles
if "%2"=="current" set FW_PROFILE=currentprofile
if "%2"=="domain" set FW_PROFILE=domainprofile
if "%2"=="global" set FW_PROFILE=global
if "%2"=="private" set FW_PROFILE=privateprofile
if "%2"=="public" set FW_PROFILE=publicprofile

if "%1"=="" goto up
call :%1