FTP is the "file transfer protocol" most often used over the Internet. It is even used by most browsers when doing downloads. Starting in version 12.6 of AnzioWin, we included an integrated FTP client that could auto-login to a host, transfer files and provide some user feedback. It could also be used within macros and scripts for AnzioWin.
AnzioWin version 15 introduces SFTP support, FTP over a Secure Shell connection. SFTP encrypts all its data and control sequences during a SFTP session, just as SSH would for a terminal session.
There are major differences however. FTP actually runs utilizing the Windows "wininet" routines and requires opening a separate network connection to the host requiring a separate login and password be entered again (though AnzioWin can do this in the background). This also means your firewall must allow FTP connections in and out.
SSH SFTP does not require a separate login, does not require a new network connection and does not require access through a firewall. SFTP works over a "back-channel" of SSH, running in the background of the same SSH session you are currently logged into.
More information can be found in the Anzio manual, How-To and Read-Me files, and in our support pages at our web site.