Xlight FTP server

Found a great FTP server daemon for Windows which supports SFTP and has some advanced functionality for authentication. It's an excellent replacement for the bog-standard IIS FTP server if you need to encrypt your data transfers or need to support authentication which is integrated with your Active Directory.

There is a free version and paid-for versions which add some of the advanced functionality.

Get it from the following link: http://www.xlightftpd.com