This is a bat script which locks, hides your folder and then when you want to unlock, unhide it you have to enter password.
==>Default password is 123456
Note:- If you wnat to change the password you have to edit .bat script using notepad then search for a line "if NOT %pass%==123456 goto FAIL" and chnage the value of pass variable accourding to your use. Like I have said the default password is 123456 you can see the value of variable is 123456.
Line no. 43 ==> "if NOT %pass%==123456 goto FAIL"