Steven, I got it to work! Had to make some change to the jamfiles however to get it going on my workarea (non sandbox). How should i interpret the callgraphs? See sample below. Is the part below Parents the call(stack)? Need some help in doing analysis using this nice tool. Paul Call Graph I:\fcm3prod\BuildSet\repository\Boost\boost\boost/mpl/aux_/preprocessed/plain/fold_impl.hpp(131) (48) Parents: I:\fcm3prod\BuildSet\repository\Boost\boost\boost/mpl/fold.hpp(32) (48) I:\fcm3prod\BuildSet\repository\Boost\boost\boost/mpl/transform.hpp(138) (24) I:\fcm3prod\BuildSet\repository\Boost\boost\boost/variant/variant.hpp(114) (24) I:\fcm3prod\BuildSet\repository\Boost\boost\boost/variant/variant.hpp(216) (24) I:\fcm3prod\BuildSet\repository\Boost\boost\boost/variant/variant.hpp(908) (48) b.cpp(25) (48) Children: I:\fcm3prod\BuildSet\repository\Boost\boost\boost/detail/reference_content.hpp(115) (336/50) I:\fcm3prod\BuildSet\repository\Boost\boost\boost/detail/reference_content.hpp(85) (336/50) I:\fcm3prod\BuildSet\repository\Boost\boost\boost/mpl