<%@ WebHandler Language="C#" Class="ChangePwd" %> using System; using System.Web; using System.Web.SessionState; public class ChangePwd : IHttpHandler, IReadOnlySessionState {     public void ProcessRequest (HttpContext context)    {         context.Response.ContentType = "text/plain";         OperUser ou = new OperUser();         if (ou.ChangeWsPassword(context.Session["ws_user"].ToString(),context.Request.QueryString["pwd"].ToString()))         {             context.Response.Write("true");         }         else         {             context.Response.Write("flase");         }     }     public bool IsReusable {         get {             return false;         }     } }