C# - Refer The Resultant Xml File Which Is Being Constructed And Saved From Webservice File

This is my webservice code which performs constructs xml file and stores to particular destination ,Is this the correct way to store the resultant xml file ,or let me know if their are any alternate procedure to do so.

[WebService(Namespace = "[URL]")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class JsonWebService : System.Web.Services.WebService
{
XmlDocument xmlDoc = new XmlDocument();
public string keyword;
public JsonWebService () {
//Uncomment the following line if using designed components
//InitializeComponent();
}
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public bool GetList(string keyword1, string streetname, string lat, string lng, string radius)
{
XmlDocument xmlDoc= CreateXML( keyword1,streetname,lat,lng,radius);
//save file to application folder which will be refferd by client application
xmlDoc.Save(@"C:Documents and SettingsDesktop lockBlock3.xml");
return true;
}

I am not able to refer that xml file constructed at webservice ,from clientside applicaton this will be my code on clientside ,is this the right way to refer saved xml file

function searchLocationsNear() {var searchUrl ="[URL]"; //reference for xml file stored in application folder
GDownloadUrl(searchUrl, function(data) {
var xml = GXml.parse(data);
var markers = xml.documentElement.getElementsByTagName('marker');
map.clearOverlays();
..........................