ShellExecute(0, nil, 'cmd.exe', 'sc config "the service name" start=disabled', nil, SW_HIDE);
ShellExecute(0, nil, 'cmd.exe', 'sc config "the service name" start=auto', nil, SW_HIDE);
ShellExecute(0, nil, 'cmd.exe', 'sc config "the service name" start=demand', nil, SW_HIDE);