Using Halion Sonic SE3 sounds in other programs

The Halion Sonic SE3 sounds are working fine in Dorico. However, I cannot seem to find a *.vst3 file anywhere on my hard drive that I can use in my Multitrack Studio sequencer. I’ve got tons of *.vstsound files though. Where are the actual files for Halion on Windows 10?

I figured it out. It’s not a *.vst file; it’s a *.dll. It lives at:

C:\Program Files\Common Files\Steinberg\Shared Components\HALion Sonic SE\HALion Sonic SE.dll


*.dll files are VST2 plug-ins. VST3 plug-ins are using *.vst3 extension.