CppDoc generates HTML documentation for C++ classes.
CppDoc generates HTML documentation for C++ classes, based on your source code and special comments embedded within it. It can produce output that is very Similar to the output of Javadoc, and it supports Javadoc tags such as @see, @return , etc. The documentation comments are optional; if you leave them out, CppDoc will still generate a full set of documentation based on class relationships and hierarchy.
CppDoc v2.4 was released on 2005-04-19. This update contains bug fixes and a few incremental features, some of which are:
Added the ability to read documentation comments after declarations, like this:
int foo; /// some documentation

Added a separate option (Use C++ namespace as project, or -namespace-as-project on the command line) for using the C++ namespace (instead of the directory) as the Project.
Added a button for Generate Command Line from the main dialog (previously this command was only in the system menu).
Added the ability to exclude files or directories by prefixing them with # in the list.
Added the ability to accept multiple documentation comment formats. you can free download CppDoc 2.4 now.