The good news is that you no longer need a serial number to get professional-grade sound enhancement from this developer. DFX Audio Enhancer has been rebranded as , and the creators have officially made it completely free and open-source Current Status of DFX & FxSound DFX is Legacy Software

The official DFX Audio Enhancer has been rebranded as FxSound , and it is now entirely free to use for everyone. You no longer need a serial number or license key to access premium features.

If you purchased DFX Audio Enhancer 12023 (or any version) legally and lost your key: