using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.IO;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Page.IsPostBack)
        {
            //aztecexim/aztecexim.com/www/ProjectFile
           
            //FileStream MyFileStream = new FileStream(@"c:\qq.zip", FileMode.Open);
            FileStream MyFileStream = new FileStream(@"C:\aztecexim\aztecexim.com\www\ProjectFile\MyPDF.zip", FileMode.Open);
            long FileSize;
            FileSize = MyFileStream.Length;
            byte[] Buffer = new byte[(int)FileSize];
            MyFileStream.Read(Buffer, 0, (int)MyFileStream.Length);
            MyFileStream.Close();
            Response.ContentType = "application/zip";
            Response.AddHeader("content-disposition", "attachment; filename=MyPDF.zip");
            Response.BinaryWrite(Buffer);
        }
    }
}