title: Custom Action not working msiexec /a - Visual Studio Setup Project
body: <p>I have a visual studio setup project creating a setup.msi. I have some custom actions running during and after an installation.</p>
  <p>When I execute the command  <strong>msiexec.exe /a setup.msi  /qn</strong> to upgrade an existing installation,  the custom actions are not firing. It seems that the option <strong>/a</strong> (administrative execution) is bypassing the custom actions.</p>
  <p>Any idea ?</p>
  <p>Thank you in advance.</p>