From LabVIEW Wiki
An initialization file, or INI file, is a configuration file that contains configuration data (i.e. idiom terms) for Microsoft Windows based applications.
LabVIEW can write and read INI files using the Configuration File VIs.
LabVIEW uses an INI file to store configuration information on the Windows platform related to the LabVIEW development environment. Since LabVIEW is a multiplatform development environment, configuration information is stored in various formats. For more information see: