System.Net.WebException: The remote server returned an error: (404) Not Found.
   at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request)
   at System.Net.WebClient.DownloadData(Uri address)
   at GenerateFile.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\researchbytes.com\GenerateFile.aspx.cs:line 182