.NET Windows窗体应用程序更新自身的最佳方法是什么？

I use a home-grown system where the application updates itself from a web service. However, I seem to remember something in the original .NET sales pitch about auto-updating of components being a built-in feature of .NET. What are the best practices for having an application update itself and/or the assemblies it uses?I use a home-grown system where the application