Create Invisible Icons

Select the folder you want to make invisible and press F2 to rename it. for the file name Hold Alt Key and type 255 (Alt+255).
You will get an empty space for the folder name. (Check my previous tip "create nameless folders.."). Now right-click the folder and select properties. On the properties page click the customize tab and select change icon.
It will automatically load the windows icon library (%SystemRoot%\system32\SHELL32.dll).About 1/4 down the list you will find a blanc icon (just after the gold coloured lock icon), select it and apply it.
Enjoy.....