将一组值存储在配置文件中

In a .Net 3.5 (Windows) service, I would like to store a small collection of values in the config file. Basically, I need to allow admins to add and remove values from this small collection. What do I need to add to the config file to store a collection of small values, and how can I read the collection in C#? In a .Net 3.5 (Windows) service, I would like t