Update 28 Aug 2016: Refer to this link for updated code supporting Visual Studio 2015.

This is the table of contents for the series on using T4 to create an AppSettings wrapper for use in any code.

1. Creating a static T4 Template for AppSettings
2. Creating a dynamic T4 Template for AppSettings
3. Reading Settings from the Configuration File
4. Separating Customizable Parts from Static Parts
5. >Customizing the Template
6. Creating a Deployment Package (Part 1)
7. Creating a Deployment Package (Part 2)