Private Async Function RunProcess() As Task
        AddHandler EO.Base.Runtime.Exception, AddressOf EOException
        Try
            Using threadRunner As New ThreadRunner()
                Using mainWebView As WebView = threadRunner.CreateWebView()
                    Await mainWebView.LoadUrlAsync(Utility.GetHtmlFilePath())

                    mainWebView.EvalScript("run some js code")

                    Dim pdfDoc As New PdfDocument()
                    HtmlToPdf.ConvertHtml(mainWebView.GetHtml(), pdfDoc)
                    pdfDoc.Save("c:\temp\testPdf.pdf")

                    mainWebView.Close(True)
                End Using
                threadRunner.Stop() ' <- freezes here
            End Using               ' <- or freezes here if remove threadRunner.Stop() above
        Catch ex As Exception
            RaiseUnhandledException(ex, True)
        Finally
            RemoveHandler EO.Base.Runtime.Exception, AddressOf EOException
        End Try
    End Function