I do not expect the user, when wanting to run the program, to type in "java -cp .;C path_to_jar_file; ... Open a jar file in WinZip (or whatever) and look in the META-INF directory.

Some file operations on Windows have been changed for the sake of safety and consistency in the upcoming Java update.

In this second article in the Open source Java projects series, I’ll introduce you to an easier and safer solution: Todd Fast and Timothy Wall’s Java Native Access (JNA) project.