note matija Do you have a high resolution clock under windows (for instance, does [cpan://Time::HiRes] run there?) <p> If you can get hires timer from that or from any other module, select a time not far into the future, and have both machines start then. <p> Of course, you will have to ensure that both machines have synchronized clocks (and I don't know if even NTP can guarantee 1ms resolution in sync). 369854 369854