Hi, By trying to set different namespaces on the web services, I get the following error message by trying to access the service: Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not create type 'QApps.CodeHelper.FormViews'. and: namespace QApps.CodeHelper { /// <summary> /// Summary description for FormsViews /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] public class FormViews : System.Web.Services.WebService { } } Note: the main namespace is QApps, Can you please help me solve this problem? and by the way, please explain the meaning of http://tempuri.org/ url, and how can I change it based the webservice? Regards, Bader