You may use the jar command from the JDK or Java 2
SDK to unzip the distribution or use another platform specific
utility to do this. Unzipping the file creates a directory of the
form jaxp-<version> within the extraction directory.
You can either update the CLASSPATH environment
variable to include the three jar files, or you can install the
jar files as an extension to Java 2.
To update the CLASSPATH variable, add the following
components. Let $XML represent the directory where
you installed JAXP.
$XML/jaxp.jar:$XML/crimson.jar:$XML/xalan.jar$XML\jaxp.jar;$XML\crimson.jar;$XML\xalan.jarTo install these jar files as an extension of Java 2, copy them to
the $JAVA_HOME/jre/lib/ext directory. (The
JAVA_HOME directory is the one that contains
bin/java.) This eliminates the need to modify class
paths. (This technique may also be used with the Java Plug-in.)