Windows Forms allow you to build a rich and responsive user interface for your applications. In this article I'll discuss a number of techniques you can use to ensure that Windows® Forms-based apps provide optimal performance as well. I'll discuss common performance-critical scenarios such as startup, control population, and control painting. Plus, I'll discuss how to design and code for performance in your application. Together these techniques should give you a good, basic foundation for getting the most out of your UIs.