title: Detect if MongoDB is installed on windows
body: <p>I need to detect if MongoDB is installed on a Windows machine in my app installer. </p>
  
  <p>Does anyone know what I can look for in the registry to be sure it is installed?</p>
  
  <p>I've searched the entire registry and researched on SO and google for hours. Mongo registry entries are using GUID keys, so these change per install and I don't think I can find it this way in innosetup.  </p>
  
  <p>I'm hoping someone has already solved this problem and can help me so I don't have to spend more hours reinventing the wheel.  Thanks to anyone with useful information.</p>