Hello.I have many workstations which are working in domain on Windows 2003 Server and workstations are working on Windows XP. We need solution how to make when is any accident, fire that message automaticly distributes on all workstations screens. How to make such warning system?Thank You.Regards,Girts

You could use the default messenger service on all Windows machines. You need to start the service, which is disabled by default current versions of Windows. You can then use the net send command to send a message to send to the entire domain. The syntax would be as follows:net send /domain:domainnamehere "Test Message Here"The messenger service is a large security risk because of exploits that have been exposed with this service. You could try a free product like Lantalk to send messages. http://www.lantalk.net/.

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To choose a instant messaging system that with the function of broadcast message, like BigAnt corporate messenger.