After verifying the Visual C++ build environment, you will need to prepare for manual compiling and linking. Microsoft uses the convention VCVARS32.BAT as the filename used to prepare a Command Prompt window for manual compiling and linking. If you installed Microsoft VC++ 2005 Express to the default location, VCVARS32.BAT can be found in C:\Program Files\Microsoft Visual Studio 8\ VC\bin. You need to copy this file to a convenient location and execute it before manually building the user-level programs found in this book. Alternately, you can create a shortcut to cmd.exe that executes VCVARS32.BAT from its default location. Once the setup file has been executed from a Command Prompt window, you will be able to manually compile and link source code from that window.