You can add directory descriptions to inform FTP users of the contents of a particular directory on the server by creating a file called ~FTPSVC~.CKM in the directory that you want to annotate. You usually want to make this a hidden file so directory listings do not display this file. To do this, use File Manager or type the command attrib +h ~ftpsvc~.ckm at the command prompt.
Directory annotation can be toggled by FTP users on a user-by-user basis with a built-in, site-specific command called ckm. On most FTP client implementations (including the Windows NT FTP client), users type a command at the command prompt similar to quote site ckm to get this effect.
You can set the default behavior for directory annotation by setting a value for AnnotateDirectories in the Registry, as described in "Advanced Configuration Parameters for FTP Server Service" later in this chapter.