This tool provides the following features not available in Windows:

• Add network (UNC or mapped drive) and any other un-indexed folders to libraries.
• Backup library configuration, such that a saved set of libraries can be instantly restored at any point.
• Create a mirror of all libraries (using symbolic links) in [SystemDrive]:\libraries.
• Change a library's icon.

For more info see:

[http://zornsoftware.codenature.info/blog/win7-library-tool.html]