cFosSpeed Miniport Windows Driver is a network driver that is part of the cFosSpeed software, which is a traffic shaping and network optimization tool. cFosSpeed is designed to improve the speed and responsiveness of your internet connection by optimizing traffic and reducing latency, especially in cases where multiple devices or applications are using the network simultaneously.

The Miniport driver is a specific type of driver that integrates with Windows networking. It functions as a virtual network adapter that helps cFosSpeed manage network traffic more efficiently by controlling how the data packets are sent and received through the network interface.