Secure ftp

I believe I know that answer to this, so I am basically asking for the sake of completeness. I have to transfer some file to a secure ftp server using the sftp protocol, and I am wondering if REBOL can do that. Just writing to ftp://...etc. seems not to work. I have solved the problem by calling a scriptable sftp client called WinSCP, but I want to be sure I have left no stone un-turned, REBOL-wise. Thank you.

There are three protocols with related names https://en.m.wikipedia.org/wiki/FTPS The one you mentioned sftp can't be done. Ftps could likely easily be done by just changing from TCP to TLS in the ftp protocol.