I am able to run R, asymptote, graphviz, octave, openscad, python and freecad all on the filter module without problems. The same problem as I have with wordcloud I have with maxima and geogebra. \traceexternalfilters isnt giving me a lot. I have tried the following sample1.bat batch file and it seems to create the wc file from the sample text file that comes with wordcloud