“Unknown publisher” dialogs for Flutter (libEGL/libGLESv2) on Win10/11

Meeting SDK Type and Version

Description
When used from a Flutter desktop app, a Zoom Workplace dialog appears during Meeting SDK initialization. This happens on Windows 10 and Windows 11, in both Debug and Release.

  • Clicking Yes continues normally.
  • Clicking No closes the app.

These dialogs appear every time and confuse our users.

Error
Only the two Flutter ANGLE DLLs are referenced. Both of the following dialogs can appear:

sdk.dll is using libEGL.dll from an unknown publisher. Are you sure you want to run this software?
sdk.dll is using libGLESv2.dll from an unknown publisher. Are you sure you want to run this software?


How To Reproduce

  1. Create a Flutter Windows desktop app (Flutter 3.35).
  2. Integrate the Windows Meeting SDK.
  3. Run the app and initialize the SDK.
  4. A Zoom Workplace dialog appears referencing libEGL.dll or libGLESv2.dll.
  5. Yes → proceeds; No → app exits.

Question
Is there a method or a workaround to prevent/suppress these dialogs specifically for libEGL.dll / libGLESv2.dll when using the Windows Meeting SDK with Flutter? Any guidance or best practices would be greatly appreciated.

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