use Win32::ChangeNotify;
my $PathConfig = "C:\\SCRIPT\\Config";
my $FileChangeStr = 'LAST_WRITE|FILE_NAME|SIZE';
my $oNotifyConfig = Win32::ChangeNotify->new($PathConfig, 0, $FileChangeStr);
sub snooze {
    my $timeout = shift;
    $timeout *= 1000;
    $oNotifyConfig->wait($timeout);
    $oNotifyConfig->reset();
}