Hello, In my engine I need to add documentation, in the form of code comments, to all my header files (hundreds of...) The documentation for each function includes a brief description of its usage and of its parameters and return values. Not only functions but other objects like classes have to be commented. Now, since this is a HUGE work to do, before starting I would appreciate the advice of people here on a suggested format. The possibility of automatically extracting a documentation file from the code by parsing the comments is a big bonus.I know .NET promotes in-code documentation in XML format, but I'm also aware of other formats (like the Doxygen one). Any advices on this matter? Thanks a lot, Stefano