Exception from dialog not catched on Windows x64 box?

Hello.

I've installed VS 2003 on my Windows XP x64 box. And catched the
problem: if exception is thrown from some window ShowDialog it is not
catched by catch followed by ShowDialog.

Somewhere in the VisibleChanged dialog form handler exception is
thrown.

private void Dialog_VisibleChanged(object sender, System.EventArgs e)
{
if (Visible == false)
throw new ApplicationException("test exception from dialog");
}

On Windows XP x32 box it is catched after dialog is displayed.

try
{
using (Dialog d = new Dialog())
{
d.ShowDialog();
}
}
catch(Exception ex)
{
MessageBox.Show(string.Format("exception catched\r\n{0}",
ex.Message));
}


When code is build on Windows XP x64 exception is not catched :( How it
could be possible?

Compleete test could be downloaded from
<http://spot9969.multiply.com/video/item/1> (11KB, VS 2003)