Installing from source on Windows

The BUILDING.md document referenced previously has instructions. One uses the build tools from Visual Studio, or else the full Visual Studio 2017 product: 

• Visual Studio 2017: https://www.visualstudio.com/downloads/
• Build tools: https://www.visualstudio.com/downloads/#build-tools-for-visual-studio-2017

Three additional tools are required:

• Git for Windows: http://git-scm.com/download/win  
• Python: https://www.python.org/
• OpenSSL: https://www.openssl.org/source/ and https://wiki.openssl.org/index.php/Binaries

Then, run the included .\vcbuild script to perform the build.