title: in Visual Studio 2019, what project runs when I press F5?
body: <p>I's been a while I'm working with Visual Studio. so I'm a little confused. When the solution has 2 projects, (one send, the other receive), if I press F5 key, how can I tell what project will run?  Of course I can explicitly select the project by right clicking the project, and select debug, and select start new instance. In my solution browser window, the 'send' project name is in bold character. I thought it's bold because I once set it as the initial project. When I press F5, is it the 'initial project' that runs?</p>