With your text editor, create a new text file in your root directory called: c:\paths.bat.
Add the following lines to the file:
set path=c:\jdk1.3\bin;c:\jikes\bin;%path%
set classpath=c:\jdk1.3\jre\lib\rt.jar;.;c:\orion\orion.jar
Now you will need to run this batch file prior to compiling or running your java programs from a command prompt. To run the batch file, type the following from a DOS prompt:
\paths.bat
Notes:
If all you want to do is run Orion, you don't need to set your paths. Setting the paths is only for compiling and running java applications from the command prompt.