Как отобразить QR код в ASP.NET (Updated!)

Imports ZXing
Imports ZXing.Common
Imports System.IO
Imports System.Drawing.Imaging

...

        Dim barcodeWriter = New BarcodeWriter() With {
            .Format = BarcodeFormat.QR_CODE,
            .Options = New EncodingOptions() With {
                 .Height = 250,
                 .Width = 250,
                 .Margin = 5
            }
        }

        barcodeWriter.Options.Hints.Add(EncodeHintType.CHARACTER_SET, "UTF-8")
        barcodeWriter.Options.Hints.Add(EncodeHintType.DISABLE_ECI, True)

        Using bitmap = barcodeWriter.Write("whatever data you want to put in here")
            Using stream = New MemoryStream()
                bitmap.Save(stream, ImageFormat.Gif)
                Dim qr As String = String.Format("data:image/gif;base64,{0}", Convert.ToBase64String(stream.ToArray()))

                Literal1.Text = "<img src=""" & qr & """>"
            End Using
        End Using