WinSCP is an open source free SFTP client, SCP client, FTPS client and FTP client for Windows. Its main function is file transfer between a local and a remote computer. Beyond this, WinSCP offers scripting and basic file manager functionality.
Installation packageof the first version mentioned in the downloads page. If that fails because permission is denied use the first anchor that says
Portable executables.
Windows Explorerrather that
Norton Commanderinterface style. I prefer the former, but the latter is the default.