1. # Right-click the solution in the Solution Explorer and select Properties.2. # In the Properties window, select Common Properties > Startup Project.3. # Here you can change the Startup Project to either the currently selected project, a single startup project (this is selected by default), or multiple startup projects.4. ## When selecting Multiple startup projects, you can modify the execution order and action for each project between Start, Start without debugging, or None. 5. # Save your settings by selected Apply or OK.