I would like to use JAXP in an application that has be able to run on the JVM 1.3. 1.5 is not supported by our wonderful Information Management community. I've poked around a bit on java.net for the JAXP jars so that I can include it in my application. According to java.sun.com it's there but I'm either blind or they hid it really well.
jaxp.jar is obsolete look at the last faq at
http://java.sun.com/xml/jaxp/faq.html. I guess you can download xerces or crimson parsers and use them instead. IMO xerces offers more features