With the development of internet technology, the speed in Network has been enhanced largely. So the practicability, stability and easy use of the software became the pivotal problem. WinFTP which measure up RFC959 File Transfer Protocol whole solves this problem perfectly. It adopts asynchronous Winsock resolving to connect FTP Server. It can support resume broken upload and download or delete the whole folder including sub-directory or any files; support drag and drop the folders and files to upload or download; The MS Internet Explorer-like interface favorites; support SOCKS proxy such as SOCKS4/SOCKS4A, SOCKS5, HTTP1.1; support many familiar FTP proxy server, such as MS Proxy Server 2.0 and so on. Besides the most essential function of WinFTP software mentioned above .