Difference in using SFTP or FPT

HI I have done a .net program recently using SFTP. Now we also have here FTP doing manually. they were asking
what was involved to change that to the .net program.

Are there any code changes i need to make? for a version that will do FTP.

I dont need one program to do all.

Just change SessionOptions.Protocol to Protocol.Ftp.

And adjust username, hostname, paths, etc, as needed.