title: Java web start fails to start - JRE 7 32 bit (running on 64 bit windows system)
body: <p>I have removed all JDKs/JREs (using the uninstaller), removed the JavaSoft stuff from the registry, removed JAVA_HOME from the environment variables, removed any reference to Java in the "Path" environment variable.</p>
  
  <p>Then I installed JDK 7u11 for 32 bit system.</p>
  
  <p>When I try to use Java webstart (either via the browser or directly from the command line), I get the Java 7 splash screen briefly, and then a dialog that says "Unable to Launch the Application", clicking on the "Details" button yields this:</p>
  
  <pre><code>java.lang.NullPointerException
      at com.sun.deploy.config.JREInfo.validateHomeJRE_int(Unknown Source)
      at com.sun.deploy.config.JREInfo.initialize(Unknown Source)
      at com.sun.deploy.config.ClientConfig.refreshProperties(Unknown Source)
      at com.sun.deploy.config.ClientConfig.init(Unknown Source)
      at com.sun.deploy.config.WebStartConfig.init(Unknown Source)
      at com.sun.deploy.config.ClientConfig.&lt;init&gt;(Unknown Source)
      at com.sun.deploy.config.WebStartConfig.&lt;init&gt;(Unknown Source)
      at com.sun.javaws.Main.main(Unknown Source)
  </code></pre>
  
  <p>I am executing the right javaws.exe file (I'm trying this with the command line to be sure).</p>
  
  <p>I googled this and found only one unhelpful link:</p>
  
  <p><a href="http://fxexperience.com/2011/05/maps-in-javafx-2-0/" rel="nofollow">http://fxexperience.com/2011/05/maps-in-javafx-2-0/</a>  (look in the comments section, apparently someone else has the same problem, but not resolved).</p>