Create/USE XML initialization file

Hello everyone,

I have a request to create configuration file using XML format. I am familiar with *.ini files for now, and didn't use XML yet. 

The primary objective of that file is to initialize program parameters/variables on startup. 

I am following this XML topic regarding XML advantages and fp file location.

I would kindly appreciate any simple example that provides a functionality that I described above. 

Thanks in advance for any tip or example.