Conclusion and Recommendations
Once the driver is updated, go to the extracted download folder and run the DolbyHomeTheater.msi to install the actual interface. Modern Alternative: Dolby Access
Some users have successfully extracted the Dolby APO (Audio Processing Object) from older driver packs. Look for driver packs labeled Realtek HD Audio Driver with Dolby Home Theater v4 . Reliable archives from 2014-2016 often work.