This document discusses setting up an open source web server on Windows for classroom use. It explains that open source software is freely available with source code that can be modified. Popular open source software like Linux, Apache, MySQL and PHP are good for education as they allow collaboration. Setting up a free open source web server on Windows is easy for teachers and schools who are familiar with Windows, and it provides students a place to create web pages and learn server administration at low cost. The document provides examples of open source software that can run on Windows and lists learning management systems and content management systems that can be set up on the open source Windows server.