installing enhydra on windows XP

Hi

 

I have downloaded enhydra, the java development kit j2sdk1.4.1_04 and
the javaCC version jacacc-3.2. I have followed the instructions in the
readme file found in the enhydra directory and I have changed the paths
in the build.properties file. 

 

I do not understand what is meant by  

--

Please set JAVA_HOME environment varibale to your jdk directory, and
insure that java tools.jar is included in your system CLASSPATH
environment variable.

--

 

How does one do this using windows XP, Can you help?

 

I followed 

--

Once you have edited the "build.properties" file discussed above, go to
the 

Enhydra directory in which is this README and issue the following
command:

 

compile buildAll

--

 

However the compile fails with a message that it cant fined the file
javacc.zip in the directory . I changed the name of the file I
downloaded jacacc-3.2.zip to jacacc.zip  and now it fails with a message
that java return code 1 .

 

Please can you advise me how to properly install enhydra?

 

Thanks

 

M KINN