Hi

I have the following code:

       Dim cred1 As New System.Net.NetworkCredential("myusername",
"mypassword", "mydomainname")
       Dim cc As New System.Net.CredentialCache
       cc.Add(New Uri("http://www.yahoo.com"), "Basic", cred1)
       Dim wp As System.Net.WebProxy = New
System.Net.WebProxy("myproxy", 80)
       wp.Credentials = cc

       Dim wr As WebRequest = WebRequest.CreateDefault(New
Uri("http://www.yahoo.com"))
       wr.Proxy = wp
       Dim wrep As WebResponse = wr.GetResponse()

       Dim st As MemoryStream = wrep.GetResponseStream()
       Dim sr As StreamReader = New StreamReader(st)
       Dim result As String = sr.ReadToEnd()
       Response.Write(result)
       Response.End()
   End Sub

When I execute the above code I get the error "The remote server
returned an error: (407) Proxy Authentication Required"