Edge: In-Process native extension and Windows.System.Launcher.LaunchFileAsync
I have developed an edge browser extension (native messaging) using the in-process mechanism as described here (through an activation of OnBackgroundActivated ). Within OnBackgroundActivated , or to be more specific in OnAppServiceRequestReceived of the established app service connection, I am attempting to call Windows.System.Launcher.LaunchFileAsync(IStorageFile) . This doesn't appear to happen on the UI-Thread (although it does work in debug mode with a debugger attached). The problem that I am facing is, that the application is headless, and therefore there is no CoreWindow