Librarian is a powerful libraries manager for Windows 7 which allows you to take full control on Windows 7 libraries, including custom icons with two clicks.
Create a new library with any folder(s) inside.
Change library’s icon.
Change content type of new or current library.
Change “default save location” option.
Change “Show in Navigation Pane” option.
Show library as XML.
Change icons for default libraries in Windows 8.
You can download Librarian from here http://winaero.com/download.php?view.7