Files
IfcOpenShell/win/sln

Original information from the README.md:

For Windows users a prebuilt Open CASCADE version is available from the
http://opencascade.org website. Download and install this version and
provide the paths to the Open CASCADE header and library files to MS
Visual Studio C++.

For building the Autodesk 3ds Max plugin, the 3ds Max SDK needs to be
installed as well as 3ds Max itself. Please provide the include and
library paths to Visual Studio.

For building the IfcPython wrapper, SWIG needs to be installed. Please
download the latest swigwin version from http://www.swig.org/download.html.
After extracting the .zip file, please add the extracted folder to the PATH
environment variable. Python needs to be installed, please provide the
include and library paths to Visual Studio.