As far as I have figured out, I have to do something like this:

Open the Registry Editor, and navigate to HKEY_CLASSES_ROOT\jarfile\shell\open\command, and modify the value of the Default key as follows Replace [Location of your JRE] in "[Location of your JRE]\bin\javaw.exe" -jar "%1" %* with the root directory of your JRE installation. For example, "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "%1" %*. Repeat the above steps for HKEY_LOCAL_MACHINE\SOFTWARE\Classes\jarfile\shell\open\command.

The problem is that I don't have that "jarfile".

I would appreciate any help.

CodePudding user response：

The registry portion is basically notifying the OS that when you attempt to run the jar file what program to use, where it located and the arguements to specify opening a jar file with that application.

It you dont have javaw.exe then install java, if your talking about the "%1" %* then its just a way of saying run javaw.exe -jar "file.jar" where file.jar is the jar file you double clicked on. "%1" %* does not and will not exist as a file or object.