1. Download the package here:
https://www.nuget.org/api/v2/package/ManagedBass.Dts/0.2.12. Add a *.zip extension to the file and open it in your zip application;
3. Open the "build" subfolder and from the "x86" folder inside extract the file bass_dts.dll into your MusicBee directory.
You can now play stereo DTS audio with MusicBee, FWIW! Thanks to the un4seen forum for the source info.