.4oo java -classpath /usr/share/texmf/tex4ht/bin xtpipes -i /usr/share/texmf/tex4ht/xttl/ -o %%0.4oo %%0.tmp FYI, thanks to Eitan, these hardwired references in tex4ht.env have been fixed to be relative to the current tree. Thanks for the report, Karl