Thanks Erick,
This is working for me.

Regards
mili

How can I write NetworkCredential("user", "password",
"domain") without puting my password in the code.  Can I pull this from
my computer?

I was getting the Same Error , I used this code an it fixed it

 Dim wreq As WebRequest
       Dim wres As WebResponse
       Dim SR As StreamReader
       Dim content As String
       Dim UserName As String
       Dim Password As String
       Dim proxy = New System.Net.WebProxy("http://yourproxy-address
with :port")
       UserName = "userid"
       Password = "password"
       proxy.Credentials = New System.Net.NetworkCredential(UserName,
Password, domain)
       System.Net.GlobalProxySelection.Select = proxy

        wreq = WebRequest.Create(url)
       wreq.PreAuthenticate = True
       wreq.Proxy = proxy
       Dim myWebResponse As WebResponse = wreq.GetResponse()

       SR = New StreamReader(myWebResponse.GetResponseStream(), True)
       content = SR.ReadToEnd()
       SR.Close()