Even if we are living in a cloud era, the older technologies are not dead yet. Large organizations are often masters if these older technologies which they learned to trust. The File Transfer Protocol, aka FTP, is one of these when comes time to share files between organizations. Even individuals are using it where emails are not an option.

This article starts by explaining the différences between FTP/SFTP/FTPES before providing an example of using .Net code to connect to a FTPES server.

You can read it from http://emoreau.com/Entries/Articles/2014/10/Connecting-to-FTP--FTPES-using-Net.aspx.