Lock folders without software in Windows XP using .bat file

Procedure :1. Make a folder on the desktop and name it as "12345"

2. Now, open notepad and write  ren foldername foldername.{21EC2020-3AEA-1069-A2DD-08002B30309D}  and now (Notepad Menu) File>save as.

3. In the 'save as' name it as lock.bat and click save ! (Save it on Desktop)

4. Now, again open notepad again and write  ren foldername.{21EC2020-3AEA-1069-A2DD-08002B30309D} foldername  and now (Notepad Menu) File>save as.

5. In the 'save as' name it as key.bat and click save ! (Save it on Desktop)

6. Now, double click lock.bat to lock the folder and now if you open your folder, control panel will open up !

7. Now, double click key.bat to open the folder and now if you open your folder, you can access your data inside the folder again !

8. Lock your folder and hide the key.bat somewhere else on your hard disk !
9. Whenever you want to open your folder just paste the key.bat on desktop and open your folder using it !

Simple !

note : It works only Windows XP

enjoy.. :)