To use the IDL-to-Java compiler, you must add the directory x:\www\html\sjclient to the CLASSPATH environment variable on the machine on which you will be using the compiler. If you place the Java .class files in a different directory, modify the above directory accordingly. (Note: this step is not necessary for running the Checkers demo.)
When you run som_cfg -i on the SOM server it will use SERVICES_FILE_TARGET to determine where to put the services file. The services file contains a stringified Object Reference for the NameService.
The Java client ORB will access this file to resolve the root naming context to be used by the client. The html for the Java applet will pass this variable to the Java ORB via the param tag.
For this demo, the Checkers.html file expects SERVICES_FILE_TARGET to be one directory above the directory containing Checkers.html. If you do not put the services file here, you must edit the param tag within the Checkers.html file. Its value can be either relative to the current directory (as the default one is) or a full URL path.