Introduction - If you have any usage issues, please Google them yourself
3proxy very good agent. 3proxy is a small proxy server, to achieve true cross-platform (Win32/Win64 & Unix), support for HTTP/HTTPS/FTP proxy support SOCKSv4/SOCKSv4.5/SOCKSv5 agent (socks/socks.exe), the POP3 proxy, SMTP, a proxy, AIM/ICQ proxy (icqpr/icqpr.exe), MSN messenger/Live messenger proxy (msnpr/msnpr.exe), FTP proxy, caching DNS proxy, TCP and UDP portmappers.