Do a search here for "multiple instances" and you should get several good messages. I'm using an approach with foxtools.fll that I learned from here. But, there are other, more elegant methods as well (API calls, etc).

You might also check FoxPro Advisor's site. They've had articles on this subject.

HTH

>How do I prevent from running my program twice ? (I don't want to create multiple instances of my program)