You won't need it till you need it.

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

You can simplify application deployment and customization greatly by keeping as many configuration settings as possible in a configuration file. Configuration files support XCOPY deployment, and you ...

If you want to do a better job of managing your configuration settings than just throwing random data into appSettings, you can extend your config file with your own custom XML and actually edit your ...