Visual Basic Grab an image from online

Imports System.Text
Imports System.Web
Imports System.IO
Imports System.Net

Module Module1

    Sub Main(ByVal sArgs() As String)

        If sArgs.Length = 0 Then                'If there are no arguments
            Console.WriteLine("You need to specify a url")
        Else                                    'We have some arguments
            Dim url As String
            Dim client As WebClient = New WebClient()

            url = sArgs(0)

            Dim uri As Uri = New Uri(url)
            Dim sFilename As String
            Dim iLast As Integer = uri.Segments.GetUpperBound(0)

            Try
                sFilename = uri.Segments(iLast)
                client.DownloadFile(uri, sFilename)

                'if error occurs then application doesnt crash
            Catch ex0 As WebException
                Console.WriteLine(ex0.Message)
            Catch ex As Exception
                Console.WriteLine(ex.Message)
            End Try

        End If

        Console.ReadLine()

    End Sub
End Module