If I want to prevent an app from running more than once I think I would have to use launchappandwait, which wouldn't allow me to start another app.

>There's no limt on the number of external application you can launch using this class.
>
>>Thank you... I'm not sure this is exactly what I want since there may be as many as 10 or so external apps running. But I will be looking it over good!
>>
>>I appreciate it!
>>
>>>Joe,
>>>
>>>Check API_APPRUN in .VCX form File #9477.