Proxy-Pro GateKeeper - Version 4.0 The perfect solution for anyone seeking to share, secure and speed up Internet access with other computers in almost any environment - from a private home or small office sharing a single dial-up connection to a large and complex network sharing an ISDN or T1 circuit. The software includes a powerful web cache to boost the performance of browsing activity on pages previously visited by other network users and thus dramatically reducing online costs.