After installing jython-21.class as described in the installation instructions, I navigate to the installation directory and try to lauch the interpreter by issuing the
 
jython
 
command. I then receive the following error:
 
Exception in thread "main" java.lang.NoClassDefFoundError: Files\Java\j2re1/4/2_02\lib\ext\QTJava/zip;;;C:\Program Files
\Rational\ProjectConsole\Classes\klg45/jar;C:\Program Files\Rational\ProjectConsole\Classes\swingall/jar;C:\Program Files\Rational\ProjectConsole\Classes\rmi/zip;C:\Program Files\Rational\ProcessWorkbench;C:\Program Files\Rational\common\java\swingall/jar;C:\Program Files\Rational\common\java\javahelp\jh/jar;C:\Program Files\Rational\RUPBuilder;C:\Program Files\Rational\common\java\swingall/jar;C:\Program Files\Rational\common\java\javahelp\jh/jar
 
During the installation, I did not receive any error messages.
 
My CLASSPATH includes the . directory. I am able to compile and execute other java programs.
 
Please assist.
 
Thank you.