wodSFTPdll offers secure file transfer functionality over any reliable data stream. It is the standard file transfer protocol for use with the SSH2 protocol. wodSFTPdll library implements client side of this protocol which is reliable and easy to use. SFTP protocol is designed to provide primarily file transfer, but also more general file system access on the remote server - in secure manner. SFTP protocol assumes it is running on secure channel (secure channel is implemented in wodSFTPdll), thus no plaintext passwords or file information is exposed to the network.
This library implements protocol that is also used in well known SCP (Secure Copy) command on UNIX systems. Internally, SCP client opens SFTP connection with the server for file transfer (much better than calling RCP over SSH connection).