In a large project (>1000 C++ files for a single executable) I want to track the #include file tree. To answer questions like "Why would abc.cpp need xyz.h?" and "which *.cpp files depend on xyz.h". Like the source browser can give cross-reference trees for function calls, I want to see a cross reference for header files. In a tree-like manner, to find out where to break the chain in order to reduce dependencies, to speed up the build.

Is there a way to do this in Visual Studio 2005 or could someone recommend a straightforward tool for this purpose? The tool should be tightly linked to Visual Studio, so that it knows about build configurations and the predefined preprocessor symbols.

Maybe is Doxygen a suitable tool?

Thanks in advance!