<asp:Label ID="setDinPLabel" runat="server" Text="Label"></asp:Label>
<asp:LinkButton ID="setupDinPLinkButton" runat="server" OnClick="downloadLinkButton_Click"
CommandArgument="1" CommandName="~/file/..">Setup Completo</asp:LinkButton>

protected void downloadLinkButton_Click(object sender, EventArgs e)
{
 LinkButton link = sender as LinkButton;
 Int32 idDownload = Convert.ToInt32(link.CommandArgument);
 
 COD.Download_DataSetTableAdapters.DownloadTableAdapter ta = new Dinamico.COD.Download_DataSetTableAdapters.DownloadTableAdapter();
  ta.Update_download(idDownload);
  ta.Dispose();
                
  string url = link.CommandName;
  string path = Server.MapPath(url);
  string nomeFile = Path.GetFileName(path);
  Response.Clear();
  Response.ContentType = "application/exe";
  Response.AddHeader("Content-Disposition", "attachment; filename=" + nomeFile);
  Response.WriteFile(path, false);
  Response.End();