The configuration files are located in Functions pallete>>File IO>>Configuration File VIs.
You will use these VIs to have configurable options for some variables in your program. You will save these settings in a *.ini file, which can be modified by the user instead of changing from front panel or block diagram. You can see "read configuration setting files. VI" that ship with LabVIEW as example. There is also anothere example for writing the configuration settings.
