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  • I keep getting an error Vienna Suite (M6) has caused the following error:


    I'm hoping someone can shed some light on what's happening?  I'm in proTools and I'm using a few plugins from VSL in my project.

    I'm using the VSL's Exciter Pro and I think the Vienna Suite Equalizer Pro too.

    Pro Tools freezes when this error happens:
    eLicencer Control - Error
    Application Vienna Suite (M6) has caused the following error:
    DCOM connection to program "Synsopos.exe"failed.  Error: The RPC server is unavailable.

    So I made sure and updated to the latest versions of the Vienna Suite plugins and updated eLicenser Control driver and app.  I also switched to new USB ports and still the error persists.

    Has anyone else had this problem?  

    Any help would be greatly appreciated!

    Thank you,


    Windows 8.1
    ASUS P9X79 Pro Mobo
    64 Gigs RAM
    NVIDIA Quadro M4000
    Pro Tools 12.5.1HD Native

  • Hello John, 

    That´s a pure eLicenser error message, that points to Vienna Suite (non-Pro). 

    Do you get that message when you are using other VSL products as well? A restart usually helps, alternatively you can close all eLicenser related programs and terminate the synsopos.exe process in the Task Manager. 


    Paul Kopf Product Manager VSL
  • Hi Paul, Would you suggest me removing the non pro plugins? I upgraded to the latest Version a while back and only use the pro version's now. Would that solve the issue? Edit. If you read the previous message as I hit commit , autoCorrect wrote "you lie" that was not my intention to type LOL John

  • Hi John, 

    Haha, that would have been a nice start into the day, but I guess I missed that!

    Yes, you can try to remove Vienna Suite, let´s see if that makes any difference. And you should run "Maintenance" in the eLicenser Control Center. 


    Paul Kopf Product Manager VSL
  • Hi John,

    A small caveat: If you really remove Vienna Suite (non-Pro) from your system, please be aware the VS Pro will _not_ automatically replace it in older projects.

    Kind regards,

    /Dietz - Vienna Symphonic Library