Jar runs from Dos prompt, but not when double clicked.

Question

Hello everyone,
My executable jar file will run fine when called from the Dos prompt like so: java -jar myJarFile.jar
But not when I double click it. I've associated *.jar files with java.exe as suggested here on the forums but all that happens when I double click the jar file is that I get an instance of the Dos prompt that flashes up on the screen and closes immediately. Any help or suggestions would be appreciated, thank you.
This short tutorial I found earlier may be of help to somebody.
http://www.cs.princeton.edu/introcs/85application/jar/jar.html

Answer 1

Yes Carmello, I had associated jar files via folder options in windows explorer with java.exe, now when I have the jars associated with javaw.exe as in the following:
ACTION:
javaw.exe -jar "%1"
APPLICATION USED TO PERFORM ACTION:
javaw.exe "%1"
I get an error dialog with the title string "Java Virtual Machine Launcher" and the error message itself is "Could not find the main class. Program will exit." when I double click on the jar file. As I said in my first post the application [GUI based with around ten different forms] runs fine when called from the Dos prompt. Any idea as to what is wrong? Thanks for replying by the way.