Graphviz at http://www.graphviz.org/pub/graphviz/stable/windows/graphviz-2.28.0.msi

Doxygen at http://www.stack.nl/~dimitri/doxygen/download.html#latestsrc

mscgen at http://www.mcternan.me.uk/mscgen/

Install to default directories, run Doxygen Wizard and open Docs/Doxygen
