这些链接可能会对您有所帮助.
http://learn.iis .net/page.aspx/389/configure-ftp-with-net-membership-authentication-in-iis-7/#003 [ http://www.iis.net/ConfigReference/system.applicationHost/sites/site/ftpServer/security/authentication [ ^ ]

These links might help you.
http://learn.iis.net/page.aspx/389/configuring-ftp-with-net-membership-authentication-in-iis-7/#003[^]
http://www.iis.net/ConfigReference/system.applicationHost/sites/site/ftpServer/security/authentication[^]