BackgroundWorker ProgramCheck = new BackgroundWorker();

        

        private void Form1_Load(object sender, EventArgs e)

        {

            ProgramCheck.DoWork += CanUseProgramCheck;

            ProgramCheck.RunWorkerCompleted += CanUseProgramCheckFinished;

            ProgramCheck.RunWorkerAsync();

        }

        

        private void CanUseProgramCheckFinished(object sender, RunWorkerCompletedEventArgs e)

        {

            ProgramCheck.RunWorkerAsync();

        }



        private void CanUseProgramCheck(object sender, DoWorkEventArgs e)

        {

            try

            {

                var request = HttpWebRequest.Create("link to file here");

                request.Timeout = 5000;

                var response = request.GetResponse();

               

                var file = response.GetResponseStream();



                using (var streamReader = new StreamReader(file))

                {

                    string canUse = streamReader.ReadToEnd();



                    if (!canUse.Equals("01"))

                    {



                        //Put whatever you want here

                    }

                }

                file.Dispose();

                response.Dispose();

            }

            catch

            {



                //Put whatever you want here

            }

        }

        

    }

}