How to use add assembly reference MSXML2 in C#?

Question

Following references I am using:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Net;
using System.Text;
using Microsoft.VisualBasic;
using System.Data;
using System.Diagnostics;
using System.Windows;
using MSXML2;

Not find MSXML2 reference. I have already installed msxml6_x64.msi. And using Visual Studio 2013 with Windows 8 64 bit.

Answer 1

Add a reference to C:\Windows\System32\msxml3.dll