Updater Problem of Windows Vista Retail

[SiSL]

Here is the details (Some parts may be "Localised" language of Vista), basically says there has been an error while creating WebProxy.

Error Getting File List: System
   konum: System.Net.Configuration.DefaultProxySectionInternal.GetSection()
   konum: System.Net.WebRequest.get_InternalDefaultWebProxy()
   konum: System.Net.HttpWebRequest..ctor(Uri uri, ServicePoint servicePoint)
   konum: System.Net.HttpRequestCreator.Create(Uri Uri)
   konum: System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)
   konum: System.Net.WebRequest.Create(Uri requestUri)
   konum: System.Xml.XmlDownloadManager.GetNonFileStream(Uri uri, ICredentials credentials)
   konum: System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials)
   konum: System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
   konum: System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver)
   konum: System.Threading.CompressedStack.runTryCode(Object userData)
   konum: System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   konum: System.Threading.CompressedStack.Run(CompressedStack compressedStack, ContextCallback callback, Object state)
   konum: System.Xml.XmlTextReaderImpl.OpenUrl()
   konum: System.Xml.XmlTextReaderImpl.Read()
   konum: System.Xml.XmlTextReader.Read()
   konum: System.Xml.XmlReader.MoveToContent()
   konum: System.Data.DataSet.ReadXml(XmlReader reader, Boolean denyResolving)
   konum: System.Data.DataSet.ReadXml(String fileName)
   konum: WindowsApplication7.Form1.DownloadExtras()'system.net/defaultProxy' yapılandırma bölümünde belirtilen Web Proxy oluşturulurken hata oluştu.