Radium registration file
File type: Various data file
A .radiumkey2 file is a registration file used by Radium, a radio-listening application for Apple macOS.
It contains registration information that Radium uses to validate the installed copy of the application.
File type category:
Various data file
Date updated: September 28, 2026
Radium allows users to listen to radio stations from 50 countries in 100 languages. The .radiumkey2 file stores the registration information required to validate a copy of Radium.
It is specific to Radium on Apple macOS and is intended to be read by the application rather than edited manually.
Open the file with Radium on Apple macOS. In normal use, Radium reads the registration file automatically, so it usually does not need to be opened separately.
Do not edit the file in a text editor, as changing its contents may prevent Radium from validating the registration.
A Radium registration file cannot be meaningfully converted to another format. Its contents are application-specific registration data, not media or document content.
Software applications that handle other tasks involving radiumkey2 files:
Apple macOS / Mac OS X