Application Settings the .NET way. INI, Registry, or XML

INI files and the registry are generally things of the past for .NET
applications. But what to use? XML seems appropriate, but one look at
System.XML is enough to scare most developers off, especially just to store
a few fields. Fortunately there is a very easy way in .NET to solve this,
but one that is usually not seen by developers. In this article I'll explain
how you can easily store and retrieve your application settings with just a
few lines of code.

Full Article
http://www.codeproject.com/dotnet/XMLSettingsFile.asp