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Manually Setting JAR File Association

Normally, the installation program for the Java 2 Runtime Environment will register a default file association so that *.jar files will execute with javaw -jar by double-clicking any *.jar file. If this does not happen, or it somehow gets changed, then manually setting the assocation for *.jar files may be needed. To do this...

  1. In Windows File Explorer, select Tools>Folder Options...
  2. Click on the File Types tab, scroll down and select JAR Executable Jar File type.
  3. Click Advanced or Change.
  4. In the Edit File Type dialog box, select open in Actions box and click Edit...
  5. Find the interpreter javaw (you can use the Browse button and then navigate to the location for the javaw)
  6. You should get something similar to "C:\Program Files\Java\j2re1.4.2_06\bin\javaw.exe" -jar "%1" %* in the Application used to perform action field and click OK.
  7. Now you should be able to launch any *.jar program by double-clicking it.

This file was modified on Wednesday, August 29, 2007; at 1:36:38 PM