title: How to show a web page after an error in Inno Setup
body: <p>If Inno Setup exits with an error I want to show the standard error message box, then display my FAQ web page.</p>
  
  <p>Displaying a web page seems fairly straight forward:</p>
  
  <p><a href="https://stackoverflow.com/questions/3628894/open-website-if-there-is-error">Open website if there is error </a></p>
  
  <p>But how do I trap the error so I can call this function? There doesn't seem to be an error event:</p>
  
  <p><a href="http://www.jrsoftware.org/ishelp/topic_scriptevents.htm" rel="nofollow noreferrer">http://www.jrsoftware.org/ishelp/topic_scriptevents.htm</a></p>