How to implement icon change after application launch?

Question

C++ / C#

Again, good evening everyone!
I wrote my first useful program thanks to the great help of one of the Qna.habr participants! But as they say, interest has spread, to add it for convenience.
Second question for today... :_(
I have code:

using (var client = new SshClient("0.0.0.0", "someName", "somePass"))
            {
                client.Connect();
                string text = client.RunCommand("pgrep tor").Result;
                if (text.Length == default)
                {
                    client.RunCommand("systemctl start tor");
                    client.RunCommand("cp /etc/privoxy/toron/config /etc/privoxy/");
                    MessageBox.Show("Тор запущен.", "TOR status: ", MessageBoxButtons.OK);
                }
                else
                {
                    client.RunCommand("systemctl stop tor");
                    client.RunCommand("cp /etc/privoxy/toroff/config /etc/privoxy/");
                    MessageBox.Show("Тор остановлен.", "TOR status: ", MessageBoxButtons.OK);
                }
                    client.Disconnect();
                
            }

I would like to implement a change of icon every time the program is executed, to indicate the status.
What method to use and where can I read about it?