[Pharo-project] GraphViz in pharo

Hi! I downloaded Graphviz yesterday in my ubuntu machine using pharo 1.1.1 with cog, and graphviz worked very well :). Today I'm using a pharo 1.1 image and 4.0.2 VM on windows machine and I can't make it work :(. Graphviz needs OSProcess and CommandShell. I downloaded them, but there are some problems: - For windows it uses Win32Shell, which isn't in my Pharo Image of course :P. So I replaced it by CommandShell but it is still failing. - I'm trying to use CommandShell on its own, but I have the folowing result: *$ ls cannot access system to run 'ls'* GraphViz was adapted to pharo this year on June by "SR". ¿Does someone know who's him or her? ¿Can someone send me a tip? Thanks! Guille