You can run your application within FCAS before it is built, to check for errors. This avoids the need to continually rebuild and reinstall applications in order to test them. You can run the application at various stages of development (for example, after you have added all your forms), and it will respond based on the amount of code you have written for it at that time. To test your project: 1       Click Run on the Project tab of the Project Manager.         If an error message appears, click OK and check the code in your code module. 2       Click Stop to stop testing your application.