WINDOWS XP FOLDER LOCK WITHOUT ANY SOFTWARE

HI guys you can lock your folder in windows xp without any software ya its real.you can following step in notepad
1.open notepad
2.first you type your disk name (c:)
3.then type "cd/"
4.then you type attrib "filename" +s +h +r +a
5.then you save that file using ".bat" ("file name.bat")
6.then run that file
7.now your folder willbe locked

eg:
disk:c filename:a


c:
cd/
atrrib a +s +h +r +a

then click save as a.bat
then run that your folder will be locked

unlock this folder:

c:
cd/
atrrib a -s -h -r -a

then save and run your folder willbe unlocked

"this trick founded by me"