Sounds like you want to broadcast a network alert. Check out NetAlertRaise in the Windows API. If you specifically want your application to recieve the message and no one else on the network, I've found that TCP sockets are great. The client apps open a listener socket and an event will fire when you send something to that port.

Of course, VFP doesn't support TCP/IP directly, so you have to use a control like the ones Mabry puts out. One of our C++ progammers wrote us an simple A/X control so we didn't have to buy from a 3rd party. The programming isn't all that hard. Maybe some day VFP will support it direclty. It is a very cool way to have your apps talk to one another!

Mike