cFosSpeed is a network driver, which attaches itself to existing Internet connections. It then optimizes data transfer by means of Traffic Shaping. Traffic Shaping is a method for optimizing the Internet traffic. It allows maximum speed while ensuring minimal Ping. You can use cFosSpeed with a router and/or a DSL-modem or cable-modem. You can also use cFosSpeed with other types of Internet access, ie. whenever you already have an existing Internet connection. cFosSpeed supports a wide variety of connections, like DSL, cable, ISDN, UMTS, etc. cFosSpeed has two goals - keep network delays (ping times) small, in order to make Internet applications as responsive as possible. And improve data throughput by avoiding network congestions. You can use cFosSpeed with an Internet connection you use exclusively or which you share with several PCs.