Internet Information Services (IIS) supports the following File Transfer Protocol (FTP) authentication methods:
Anonymous FTP authentication
Basic FTP authentication
Available authentication settings must be set at the site level for FTP sites. FTP service is not enabled by default in IIS 6.0.
If you change the security settings for your FTP site or virtual directory, your Web server prompts you for permission to reset the security settings for the child nodes of that site or directory. If you choose to accept these settings, the child nodes inherit the security settings from the parent site or directory. ...