title: Selecting which project under a solution to debug or run in Visual Studio 2010
body: <p>This one should be easy. I just can't figure out what to search for...</p>
  
  <p>For this one solution I created a unit test project, and I've been adding unit tests frantically. When I went back to try to run the original project after making all the unit tests pass I realized that I couldn't figure out how to debug the original project.</p>
  
  <p>In other words, every time I try to "debug" (e.g., by pressing <kbd>F5</kbd>), Visual Studio will run the unit tests. So the question is how do I run various projects in a single solution? How do I select which one will run when I want it to?</p>