title: wix custom action Configuring Application Pools
body: <p>I'm trying change application pool for my web application with help custom action</p>
  
  <pre><code>    &lt;InstallExecuteSequence&gt;
      &lt;Custom Action="ConfigureAppPools" Before="InstallFinalize"&gt;Application pool         configured&lt;/Custom&gt;
    &lt;/InstallExecuteSequence&gt;
  
    &lt;!-- Snip --&gt;                                          
      &lt;CustomAction Id="ConfigureAppPools" Execute="deferred" Impersonate="no" Return="check" Directory="TARGETDIR" ExeCommand="[SystemFolder]inetsrv\appcmd set site /site.name:&amp;quot;Default Web Site&amp;quot;/[path='/MyWeb'].applicationPool:MyWeb"/&gt;
  </code></pre>
  
  <p>but get following error
  LGHT0204 : ICE03: Invalid format string; Table: CustomAction, Column: Target, Key(s): ConfigureAppPools</p>
  
  <p>How fix ?</p>