How to Lock a folder Useing bat file || how can folder lock in windows 7...

 Here is the Source code:

cls
@ECHO OFF
title Folder Sumon
if EXIST "HTG Locker" goto UNLOCK
if NOT EXIST Sumon goto MDLOCKER
:CONFIRM
echo Are you sure you want to lock the folder(Y/N)
set/p "cho=>"
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Sumon "HTG Locker"
attrib +h +s "HTG Locker"
echo Folder locked
goto End
:UNLOCK
echo Enter password to unlock folder
set/p "pass=>"
if NOT %pass%== sumon goto FAIL
attrib -h -s "HTG Locker"
ren "HTG Locker" Sumon
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Sumon
echo Sumon created successfully
goto End
:End