To transfer the HELP3 Demo to your computer, do the following:

     1.  Create a directory on your local system for the demo.
     2.  Download zh3demo.exe (self-extracting executable file) into
         this directory.  
     3.  Leave the web site and go to this directory.
     4.  Type zh3demo to extract the files.
     5.  Then, type DEMO to start the demo.