These are the different IIS Settings you can apply to the directories in your Windows hosting account using the Hosting Control Center:

Anonymous Access

This enables an anonymous user to view files in a directory through a Web browser using HTTP.

Directory Browsing

This enables an anonymous user to view all files in the directory (in directory listing format) by pointing a Web browser to the directory path. You must also select the "Anonymous Access" setting for "Directory Browsing" to work properly.

Set Application Root

This enables you to set the directory or subdirectory as an IIS application root within your site. An application root is the root directory for an application. All directories and files contained within the application root are considered part of the application.

For information on limiting Web directory access, see Removing Web Access to Directories on a Windows Hosting Account.