title: Can not start java web start
body: <p>I have typed <code>javaws url_of_jnlp</code> in my CMD under windows 7, but i got the following error:-</p>
  
  <pre><code>CouldNotLoadArgumentException[ Could not load file/URL specified: url_of_jnlp]
      at com.sun.javaws.Main.launchApp(Unknown Source)
      at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
      at com.sun.javaws.Main.access$000(Unknown Source)
      at com.sun.javaws.Main$1.run(Unknown Source)
      at java.lang.Thread.run(Thread.java:722)
  </code></pre>
  
  <p>I have noticed this problem since i need java web start to be able to run an application, but when i tired to run this application , i will be asked to save a file named webstart.jnlp , instead of automatically lunching the java web start. </p>
  
  <p>So what might be the problem? </p>