Hi there,
Yes, I've followed the instructions in the FAQ about classpaths!  Nothing's worked and I'm well and truly stuck...help!
I'm using Java version 1.4.1_01 (checked using java -version) on Win98 and have downloaded the jython-21.class file into directory C:\Jython.
Acording to autoexec.bat, I have the following classpath:
SET PATH=c:\vtk40\bin;c:\j2sdk1.4.1_01\bin;c:\j2sdk1.4.1_01\jre\bin;%PATH%
set CLASSPATH=c:\vtk40\bin\vtk.jar;.
Does Jython need to be somewhere in there?  What should it look like?
I get the dreaded java.lang.NoClassDefFoundError for the following commands:
>java jython-21
>java -cp . jython-21
>java -cp -classpath c:\Jython\jython-21.class
Any feedback would be greatly appreciated.