Much thanks to Matthew for his help with this. When an executable jar is clicked on, a Windows box will search for "installed extensions" in the JRE directory. This is probably a different directory than where the JDK has been installed. For example, I have two 'extension' directories: C:\j2sdk1.4.0_01\jre\lib\ext and C:\Program Files\Java\j2re1.4.0_01\lib\ext
The j2sdk1.4.0_01\jre\lib\ext directory is where java looks for extensions when you are compiling and running your application from the command line. If you will put the biojava.jar's in this directory, your biojava code will run without altering any class-path variables. The Program Files\Java\j2re1.4.0_01\lib\ext is where Windows looks for extensions when an executable Jar has been run. If you are going to jar up a biojava application, any Windows box will need the biojava.jars placed in this directory to run correctly. Of course your actual ext directory locations may be slightly different, but the idea is the same. Andy Hammer University of Utah Human Genetics _______________________________________________ Biojava-l mailing list - [EMAIL PROTECTED] http://biojava.org/mailman/listinfo/biojava-l