Get data form existing user.config file

Hi all,

I have build an application/tool and there are some settings which can be changed. Saving to the user.config file works like a charm.
But...
When updating the application, a new folder in AppData\Local\<APP NAME> gets a new folder with a kind of hash in its name. And in that new folder a new user.config file is created. The settings in the new application should use the "old" folder so the user doesn't need to adjust the settings everytime I update the application.
How can I achieve that? I thought a "simple" would do the tric but apparently I must to more.

Thank you!

Paul