Open a word document

        Dim objWord As Word.Application
        Dim objDoc As Word.Document
        objWord = CreateObject("Word.Application")
        objDoc = objWord.Documents.Open("E:\\Pawan.docx")
        objWord.Visible = True

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 Dim oWord As Word.Application
        Dim oDoc As Word.Document
        oWord = CreateObject("Word.Application")
        oWord.Visible = True
        oDoc = oWord.Documents.Add("E:\\Pawan.doc")
        oDoc.Quit(Word.WdSaveOptions.wdSaveChanges)
        oDoc = Nothing

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Imports System.IO
Imports System.Net.Mime.MediaTypeNames
Imports System.Diagnostics.Process
Imports Microsoft.Office.Interop

Public Class Form1

    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
        Dim oWord As Word.Application
        Dim oDoc As Word.Document
        oWord = CreateObject("Word.Application")
        oWord.Visible = True
        oDoc = oWord.Documents.Add("E:\\Pawan.doc")
        KillProcess("Winword")

    End Sub


    Private Sub KillProcess(processName As String)
        Dim myproc As New System.Diagnostics.Process()
        For Each thisproc As Process In Process.GetProcessesByName(processName)
            If thisproc.CloseMainWindow() Then
                thisproc.Kill()
            End If
        Next
    End Sub

End Class

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DocX is a .NET library that allows developers to manipulate Word 2007/2010/2013 files, in an easy and intuitive manner. DocX is fast, lightweight and best of all it does not require Microsoft Word or Office to be installed.