Moritz is an "addon" to the well known tool doxygen. It generates nassi shneiderman diagramms of functions and methods in a c/c++ source as html-files, which could be included in a software-dokumentaion or simple whached by using a html-browser.
System Requirements
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP/Vista/7), OS Portable (Source code to work with many OS platforms)