Jython Issues

[Oten]

Ok I have looked all over the internet and I can't find what I am doing
wrong or how I can do it right

I am using windows xp Jython 2.1

I am trying to invoke the jython interpreter

I have set my Path in my environment variables to D:\jython-2.1; everything
has installed fine but when I try to run the command jython from dos a list
of other commands appear that go with the interpreter so I tried jython -?
and jython -help and the same thing

Python and Java are both installed with latest stable versions of both

any help is always appreciated

thanks in advance