RWStreamCoupler is a convenience class with an automated mechanism for connecting an input stream to an output stream. Used in conjunction with portal streams, it joins an FTP get() and an FTP put(), an FTP get() and a file, an FTP put() and a file, a POP3 get() and a file, and so on for each protocol. For more information, see the entry for RWStreamCoupler in the SourcePro API Reference Guide, and in the following sections: