xdcmake.exe is a program that compiles .xdc files into an .xml file. An .xdc file is created by the Visual C++ compiler for each source code file when source code is compiled with /doc and when the source code file contains documentation comments marked up with XML tags.
To use xdcmake.exe in the Visual Studio development environment
Open the project's Property Pages dialog box. For details, see How to: Open Project Property Pages.
Open the Configuration Properties folder.
Click the XML Document Comments property page.
xdcmake.exe options at the command line differ from the options when xdcmake.exe is used in the development environment (property pages). For information on using xdcmake.exe in the development environment, see XML Document Generator Tool Property Pages.
Visual Studio will invoke xdcmake.exe automatically when building a project. You can also invoke xdcmake.exe at the command line.
See Recommended Tags for Documentation Comments for more information on adding documentation comments to source code files.