title: Change project to run VS2012 C++
body: <p>How can I change the project to run in VS2012 for C++?</p>
  
  <p>Here I have two projects in one solution. Both have a main function and only the first one is always running. I would like to change it.</p>
  
  <p><a href="https://i.stack.imgur.com/DAprn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DAprn.png" alt="enter image description here"></a></p>