First of all: The user should NOT edit such files manually. If you start PhonerLite and take a look in the debug window, you will see in the second line where the configuration is loaded from. In the same directory the phone book is stored.

If you install PhonerLite into your own directory in the root (e.g. "C:\PhonerLite\") all that configuration and phone book files will be saved there too. But If you install PhonerLite below "C:\program files\" the application itself has no write access to this folder (this is since Windows Vista). Therefore all standard applications save such data in the user folder. This is "%APPDATA%". So if you open "%APPDATA%\PhonerLite" in the explorer you will find all that dynamic files belonging to PhonerLite. This folder "%APPDATA%" is NOT specific to PhonerLite - you will find there many folders of other applications. So this is normal behavior and you will find this in general Windows documentation.

Help/Debug