If you double-click on a jar file, and your Java application does not start, your .jar association has been hijacked. You can fix the problem with Jarfix.The root cause of the problem above is, that a program has stolen the .jar association. If you have installed the Java Runtime Environment the first time, the file type called "jar" is assigned to javaw.exe correctly. "jar" is an abbreviation for "java archive" and javaw.exe is the correct program to execute a .jar. However, on Windows, any program can steal a file type at any time even if it is already associated with a Jarfix app.Many zip/unzip programs prefer to do this because a jar is stored in the .zip format. If you double-click on a .jar, your pack program opens the file, rather th... Read More »

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