.NET (Core and Framework)

<br />
...<br />
using System.Management;<br />
using System.Management.Instrumentation;<br />
...<br />
...<br />
public void GetAllStartupAccounts()<br />
{<br />
   ManagementClass serviceClass = new ManagementClass("Win32_Service");<br />
   ManagementObjectCollection services = serviceClass.GetInstances();<br />
   foreach(ManagementObject service in services)<br />
   {<br />
      Console.WriteLine("{0} starts under account: {1}", service["DisplayName"], service["StartName"]);<br />
   }<br />
   <br />
}<br />

private bool loadedActivated = false;

private void Form1_Load(object sender, System.EventArgs e)
{
  this.Visible = false;
}
private void Form1_Activated(object sender, System.EventArgs e)
{
  if (!loadedActivated)
  {
    this.Visible = false;
    loadedActivated = true;
  } 
}

private void notifyIcon1_Click(object sender, System.EventArgs e)
{
  this.Opacity = 1.00;
  this.Visible = true;
}