title: Excel VBA - Stop running program that was started by Shell?
body: <p>Excel 2002 VBA.</p>
  
  <p>I have a macro that launches an external script whenever a certain condition is met:</p>
  
  <pre><code>Shell("c:\program\script.exe")
  </code></pre>
  
  <p>How do I stop that running program when the condition is not met?</p>