title: error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1900'
body: <p>I have the below issue during the project compilation in VS2017:</p>
  
  <p><strong>1>libPolyFill.lib(libPolyFill.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1900' in clientPolyFill.obj</strong></p>
  
  <p>The library file which was included in the project was compiled in VS2013 so I know that I need a specific Platform Toolset (V120) to compile it. But the problem is that Toolset V120 is no longer available even on microsoft site.
  <a href="https://i.stack.imgur.com/9ymBY.png" rel="nofollow noreferrer">I have only this toolset platforms to choose</a>
  What can I do in this case?
  Thanks for help!</p>