Yeah you'd think that would work, I tried that from the beginning and it still doesn't work. - I pointed the jwowupdater .jar file to the latest java.exe and when I click the JWU .jar file the DOS window pops up real fast and closes.
That would be because it would make it try and run it as
where it should use
java -jar JWowUpdater.jar
Try instead to point it to the javaw.exe im not sure if that works without the -jar command.
Or you could make a batch file with the following information:
c:\path to java\javaw.exe -jar %1
and then point windows to that batch file when using open with. Then it would have the correct -jar command aswell.
Hope some of it works :)