title: Visual Studio install project launch condition to check for StyleCop
body: <p>I have created a set of default project templates and development framework libraries. I currently have 2 separate installers bunt now want to combine the into a single installer and also ensure that StyleCop is installed as a prerequisite.</p>
  
  <p>If StyleCop hasn't been installed, I want it to be downloaded and installed.</p>
  
  <p>Once I've confirmed StyleCop has been installed I want to overwrite the global style rules to conform with our coding standards.</p>
  
  <p>Is this going to be possible without writing a custom installer?</p>