从XML文件调用文本消息

Currently i'm developing a software which uses layered architecture using Visual Studio 2008 and C#. In that system I want to keep all the text messages(that will be shown using message boxes when necessary) in an XML file so that if I update any message I dont have to compile the whole system. How can I accomplish this? What will be the XML file structure? How the messages will be called from C# code? Please be descriptive and give example. Thanks.Currently i'm developing a software which uses