C#NET2008 Window Application using Microsoft WORD 2003

Hullo Good Friends,
I do need your help. Please help me.

I am encountering a very puzzling problems using Microsoft Office WORD 2003 on C#NET2008 Window Application.
I am trying to export Customer Invoice Transactions to NonTemplate WORD 2003 Document and it's not working



using System;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.IO;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office;
using Microsoft.Office.Interop.Word;

Error messages generated:
Error 1 The type name 'Application' does not exist in the type 'Microsoft.Office.Interop.Word.Words'

Error 2 The type name 'Document' does not exist in the type 'Microsoft.Office.Interop.Word.Words'

Error 3 The type name 'Table' does not exist in the type 'Microsoft.Office.Interop.Word.Words'

Error 4 The type name 'Range' does not exist in the type 'Microsoft.Office.Interop.Word.Words'

Error 5 The type or namespace name 'Word' could not be found (are you missing a using directive or an assembly reference?)


namespace CSharpNet2008UseWORD2003
{
public partial class FrmWORDReport : Form
{
//---declare and instantiate WORD Objects
private Words.Application objWord;
private Words.Document objDoc;
private Words.Table objTable;
private Words.Range objTableRange;
}
}

I have tried using these coding and it's not working either:
private Word.Application objWord;
private Word.Document objDoc;
private Word.Table objTable;
private Word.Range objTableRange;