LabVIEW runtime is a National Instruments component that is required to run SoundCheck and is installed during SoundCheck installation. You should never have to make changes to this file but it may be necessary to verify the version number or to remove it for a clean install. The Runtimes can be found at the following locations:
\Program Files (x86)\National Instruments\Shared\LabVIEW Run-Time
You can also view all installed National Instruments software from Control Panel > Programs and Features > National Instruments Software.
\Library\Frameworks\LabVIEW X.X Runtime.Framework
All installed frameworks can also be found by using Applications\Utilities\System Info.