title: Java ProcessBuilder change drive
body: <p>The following code:</p>
  
  <pre><code>Process p = new ProcessBuilder("G:").start();
  </code></pre>
  
  <p>gives me the following exception.</p>
  
  <blockquote>
    <p>java.io.IOException: Cannot run program "G:": CreateProcess error=5,
    Access is denied.</p>
  </blockquote>
  
  <p>What is wrong with it?</p>