SendToClient
procedure SendToClient(AMsg: string);
This function is executed only when the client connection is FTP (or FTPS/FTPES), and is silently ignored if the client connection is SSH/SFTP.
When executed, this function sends a formatted unsolicited response to the FTP(E/S) client. If the FTP(E/S) protocol requires a human-readable reply for the current operation, this message will be prepended to (but will not substitute) such reply.