[vb.code]  * Write This Code in Button Click Event.  *  img1,2,3,4 variable is used to get and store the image name which is stored in the session.  * My Scenario was export all four chart control images into one ms-word file.  * Here all image name are unique and stored into the session variable.    Protected Sub btnExportAllChart_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExportAllChart.Click               Dim serverurl As String =   Request.Url.GetLeftPart(UriPartial.Authority) + Request.ApplicationPath + "/TempImageFiles/"          Dim img1 As String = serverurl + Session("ImageName1")          Dim img2 As String = serverurl + Session("ImageName2")          Dim img3 As String = serverurl + Session("ImageName3")          Dim img4 As String = serverurl + Session("ImageName4")          HttpContext.Current.R...