Avoid changes of system date - error

[Ably+]

Hi,

I have use following code in order to avoid system changes by user:

void OnTimeChanged(object sender, EventArgs e)
{
// Time has changed
string message = MyMessages.GetString("TimeChng");
MessageBox.Show(message);
this.Close();
}

// Event hookup code, put in your constructor or some other place where it
makes sense
SystemEvents.TimeChanged += new EventHandler(OnTimeChanged);

It works, but in some casses for.e.g. when user make modem connection or
disconnection Time has changed message has ocured???

Do you know where probllem is?

Is there some another possibility to avoid changes of system date?

Thanks :)