Enable or Disable Basic Authentication
Applies To: Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista
Enable Basic authentication when you want to require users to provide a valid user name and password to access content on an FTP site or server. Basic authentication is supported by all FTP clients.
The disadvantage of Basic authentication is that it transmits clear text user names and passwords across the network. You should use Basic authentication only when you know that the connection between the client and the FTP site or server is secure. The connection should be established either over a dedicated line or by using Secure Sockets Layer (SSL) encryption.
To enable or disable Basic authentication
Open IIS Manager.
In Features View, double-click FTP Authentication.
On the FTP Authentication page, select Basic Authentication.
In the Actions pane, click Enable to enable Anonymous authentication or click Disable to disable Anonymous authentication.