If you are managing a Windows Server 2003 file server than this add-on should be installed.
Windows Server 2003 Access-based Enumeration makes visible only those files or folders that the user has the rights to access. When Access-based Enumeration is enabled, Windows will not display files or folders that the user does not have the rights to access. This download provides a GUI and a CLI that enables this feature.
This is the first time I installed and used this tool myself. Easy to install and no reboot is required of the file server. It cleans the users view and we as system administrators have fewer “security audits” in our event viewers.

Click here to download the MSI setup files.
Tags: acess-based, enumeration, file, server