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    Adding VSTO Variables

    Learn how to activate VSTO notifications for better problem diagnosis. Use system variables to enable popup notifications.

    Published on December 2, 2025
    1 min read
    Documentaal knowledge center

    Adding VSTO Variables

    Sometimes the messages you get from the event log or dStyle365 log are not sufficient to identify the root cause of a specific problem.

    In such cases, you can enable VSTO notifications, which will display a popup message for the add-in.

    Start cmd in administrator mode. Enter the command 'rundll32.exe sysdm.cpl, EditEnvironmentVariables' and press Enter.

    VSTO variables system variables screen

    Under System Variables, add a new command:

    Variable name: VSTO_SUPPRESSDISPLAYALERTS

    Variable value: 0

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