This presentation will demonstrate how I setup an environment for building MySQL on Windows. While not strictly necessary, installing and running the Windows build system in a virtual machine allows for a single source repository to be shared among multiple flavors of Windows and/or other operating systems. We will focus on using only free or open source tools in the build environment, specifically we'll be using: VMWare Server, Microsoft Visual Studio Express 2005, Microsoft Windows Platform SDK, KitWare CMake, GNUWin32 Bison and Red Hat CygWin.