Version 4.2 (specifically 4.2 U1) is an older build from approximately 2008–2011. While some third-party sites like Uptodown or Softonic still host installers for this version, these are typically that require a license key for full functionality. Noiseware for Adobe Photoshop and Lightroom - Imagenomic

The software includes an IntelliProfile feature that automatically detects and builds noise profiles for specific camera models and ISO settings.