This source code supports Microchip?s Application Note AN833, which details Microchip?s own freely available implementation of the TCP/IP Stack. The Microchip TCP/IP Stack is a suite of programs that provides services to standard TCP/IP-based applications (HTTP Server, Mail Client, etc.), or can be used ina custom TCP/IP-based application. The Microchip TCP/IP Stack is implemented in a modular fashion, with all of its services creating highly abstracted layers. Potential users do not need to know all the intricacies of the TCP/IP specifications to use it. In fact, those who are only interested in the accompanying HTTP Server application do not need any specific knowledge of TCP/IP.