manually

 Dim asm As Reflection.AssemblyName() = System.Reflection.Assembly.GetExecutingAssembly().GetReferencedAssemblies()
        For Each n As Reflection.AssemblyName In asm

            If (n.Name.ToLower() = "system.drawing") Then
                For Each t As Type In Reflection.Assembly.Load(n).GetTypes()
                    If (t.FullName = "System.Drawing.Bitmap") Then
                        Dim BitmapAssembly As Reflection.Assembly = Reflection.Assembly.Load(n)

                    End If
                Next
            End If

        Next