Hi! Now that the SAX driver passes the tests, I made some ad-hoc measurements (feeding hamlet.xml to xml.sax.saxutils.DefaultHandler). PIRXX is roughly 4.5 times faster than xmlproc, and 6 times faster in validating mode. Compared to expat, times are nearly equal (non- validating only of course). Ciao, J=FCrgen -- J=FCrgen Hermann, Developer (jhe@webde-ag.de) WEB.DE AG, http://webde-ag.de/