title: Wix installer "A DLL required for this install to complete could not be run."
body: <p>Wix 3.10, Visual Studio 2013, Web app deployment, .net.</p>
  
  <p>After installation, it seems like all the files are all right. They are in the right place, the web application seems to be working all right.</p>
  
  <p>However when the installer finished installing, I have one of these errors saying </p>
  
  <blockquote>
    <p>Windows Installer installed the product. Product Name: .... Product
    Version: 1.0.0.0. Product Language: 1033. Manufacturer: ...
    Installation success or error status: 1603.</p>
    
    <p>Product: Vendor Master Database -- Error 1723. There is a problem with
    this Windows Installer package. A DLL required for this install to
    complete could not be run. Contact your support personnel or package
    vendor.</p>
  </blockquote>
  
  <p>How can I trace it down what is his problem? There are 10-15 dll-s involved in the Web Application is one of those the issue? (one of my own dll-s) Or this is more like a "system" dll from the Operating System or from Wix?</p>
  
  <p>How can I debug this one?</p>
  
  <p>Thanks</p>