How to enable disable msconfig startup programs

private void getStartupItems()
{    
       List<String> ItemName = new List<String>();
       List<String> ItemCommand = new List<String>();
       List<String> ItemDescription = new List<String>();
       List<String> ItemLocation = new List<String>();
       List<String> ItemUser = new List<String>();

    try
    {
        ManagementClass cls = new ManagementClass("Win32_StartupCommand");
        ManagementObjectCollection coll = cls.GetInstances();
        List<string> items = new List<string>();

        foreach (ManagementObject obj in coll)
        {
            String Name = obj["Name"].ToString();
            ItemName.Add(Name);
            listBox3.Items.Add(Name);
            String Command = obj["Command"].ToString();
            ItemCommand.Add(Command);
                
            String  Description = obj["Description"].ToString();
            ItemDescription.Add(Description);
                
            String  Location = obj["Location"].ToString();
            ItemLocation.Add(Location);
            String User = obj["User"].ToString();
            ItemUser.Add(User);
        }
       // return items;
    }
    catch (Exception ex)
    {
        //_message = ex.ToString();
        //_status = false;
       // return null;
    }
}