Portability Libraries  2015.2.0.0
Common Methods and Objects for Platform Independance.
Storage and retrieval of configuration

information. This class implements operating system independent user, application, and system preferences.

config is an older and now deprecated preferences object.
See also
Preference A newer preference object for storing and loading preferences.
SoftwareAndServices::Library::UPN::UpnDB::AddPref() For database Preferences. The UpnDB preferences are compatible with the Preference object.