If you use vcbuild.bat to build Node.js on Windows, you may receive an error message and a suggestion that you use the VS command.
If you do not have Visual Studio, you will have to install the free VISUAL C++ 2010 EXPRESS. Don’t be tempted by the other Express product offers, you’ll only be wasting your time. The C++ version is the application you need.
Once installed, click through Start > All Programs > Microsoft Studio Visual C++ 2010 > Visual Studio Command Prompt (2010). This basically is the cmd prompt, with specific environment variables set.