To run parser regression test do the following: 1) cp ../html/*.html . 2) perl ListGen.pl ( this will create file_list.txt ) 3) make ( build TestParser.exe ) 4) perl TestParser.pl -b <drive>:/<path>/mozilla/dist/bin file_list.txt ( creates base line files. Note: Should be run _without_ your changes ) 5) apply your patch. 6) perl TestParser.pl -v <drive>:/<path>/mozilla/dist/bin file_list.txt ( creates .v files and compares against base line. )