Restart VSTAudioEngine3.exe

Perhaps this is my issue as well. When I try and start the VSTAudioEngine3.exe it fails (maybe I am not starting it correctly).

c:\program files\steinberg\dorico3.5\VSTAudioEngine\VSTAudioEngine3.exe

start the program:

"Application ‘VSTAudioEngine3’ has caused the following error:
Process with the ID NOT found.
–click OK to abort–

Version 3.1.1 - Built on Dec 4 2020
“Initializing VSTAudioEngine3”

I also saw an error at one point during theVSTAudioEngine3 attempted start that was about the “elicenser”… I’m trying to reproduce that one so I can be more clear. It was in a window that closed when I closed something else… doh.


Prior to starting the audio engine, in the TaskManager have a look for the process called Synsopos. Is that one around?
If not, try to launch the eLicenser Control Center first, then that one shall launch the Synsopos process. What happens if you then start the audio engine?

Thank you Ulf!

You got it working for me.


Hi ,
No licence found for me . Can you help me please for Dorico 4 ?

We need a bit more from you to be able to help, @ehabaziz2001. Can you say a bit more about what you’ve tried so far, and what exactly is going wrong?

@ehabaziz2001 please first read Fail to upgrade from Dorico 3.5 to Dorico 4 - #31 by ebrooks and try again. If that does not help, please come back here.