protected void Page_Load(object sender, EventArgs e)
        {
            if (Request.Form["bSubmit"] == "(PLS)")
            {
                answerClicked = "PLS";
                GetFile();
            }

            else if (Request.Form["bSubmit"] == "(LYA)")
            {
                answerClicked = "LYA";
                GetFile();
             }

            else if (Request.Form["bSubmit"] == "Learning Your Colors (LYC)")
            {
                answerClicked = "LYC";
                GetFile();
            }

            else if (Request.Form["bSubmit"] == "Learning Your Numbers (LYN)")
            {
                answerClicked = "LYN";
                GetFile();
            }

        }

        public void GetFile()
        {
            int size = 0;
            answerClicked + ".exe".Length = size;
            String MyAlert= "<script> alert('Sorry, the file does not exist.'); </Script>";
            try
            {
                // Get the physical Path of the file(test.doc)
                string path = Server.MapPath("programs/");

                // Create New instance of FileInfo class to get the properties of the file being downloaded
                FileInfo file = new FileInfo(path + answerClicked + ".exe");
                //file.Length = answerClicked + ".exe".Length;
                // Checking if file exists
                if (file.Exists)
                {
                    // Clear the content of the response
                    Response.ClearContent();
                    Response.ClearHeaders();
                    Response.ContentType = "application/exe";
                    Response.AppendHeader("Content-Disposition", "inline; filename=" + answerClicked + ".exe");
                    Response.TransmitFile("programs/" + answerClicked + ".exe");
                    HttpContext.Current.ApplicationInstance.CompleteRequest();
                    if (file.Length < answerClicked + ".exe".Length)
                    {
                        UpdateDataBase(answerClicked);
                    }
                }
                else
                {
                    Response.Write(MyAlert);
                }
            }
            catch (Exception ex)
            {
                Response.Write("Error: " + ex.Message);
            }
        }