This trick allows you to put a background to your folder in Windows XP . Follow the steps below to have the same :
(1) Open notepad.
(2) Paste the code below :
(3) Save the file as desktop.ini in the folder which you want to have a background.
(4) Now paste any pic of your choice in the drive with the name wall.jpg . This pic will set as your folder background , when you reopen the folder .
That's it !! Your PC is a bit unique now. :)