title: Launch bat with CustomAction
body: <p>I have my wix file (.wxs) with my CustomAction :</p>
  
  <pre><code>...
  &lt;CustomAction Id="shellex" Directory="WINDOWSVOLUME" Impersonate="no" ExeCommand="cmd.exe /k &amp;quot;C:\rep\file\script.bat&amp;quot; " Return="asyncNoWait" /&gt;
  &lt;InstallExecuteSequence&gt;
  &lt;Custom Action="shellex" After="InstallFiles" /&gt;
  &lt;/InstallExecuteSequence&gt;
  ...
  </code></pre>
  
  <p>But when i execute my wixinstaller, it's all good except the CustomAction with cmd.exe that opens and informs that "The specified path was not found" but the path is correct.
  I don't understand why batch file was not found.</p>
  
  <p><strong>ADD</strong>
  Detail : My .bat was deployed with the installer.</p>
  
  <p>Anyone have a solution ?</p>
  
  <p><strong>Edit 1 :</strong> 
  I tried <code>ExeCommand="cmd.exe /k cd rep "</code>
  And i have "The specified path was not found"</p>
  
  <p><strong>Edit 2 :</strong>
  I tried <code>ExeCommand="cmd.exe /k dir /s A:D &gt;out.txt "</code>
  And i see that folder /rep/ doesn't exists at the .bat execution.
  /rep/ was created with installer.</p>
  
  <p>The property <code>After="InstallFiles"</code> doesn't works ?</p>