emergency pop up windows

I use SMP 7.5, we've been using it for a little over a year now and we like it. My boss came to me with an interesting question. He said " can we use Altiris to pop up on all the computers incase of an emergency?" So he would like to push out a popup through Altiris that say's a message about an emergancy that is going on. Can SMP do that?? Thanks

Tyson