my webService cannot open xml file (" access Denied ") on my localHost

XDocument xml1 = new XDocument(
                         new XElement("mySongs",
                            new XElement("song",
                                new XElement("Location", location),
                                new XElement("Date", date),
                                new XElement("Name",name),
                                new XElement("picUrl", picUrl),
                                new XElement("SongUrl", songUrl)
                                        )
                                    )
                                   );
                xml1.Save("songs.xml");