Check system for running program

Hello,
I'm putting together a java application that is supposed to lunch another program (matlab). However I need to first check to see if the program has been started from outside my java application. Is there any way to queery the system to find out if there is a program running.
I'm working in the windows environment
Thanks,
Michael
[email protected]

Thanks for the hints, I'm now trying to query the windows Task manager to find out if there is an active copy of the matlab application running.
On your suggestion to check for a matlab API, I have looked into thier supported API functions but they are all beta and rather buggy.
Thanks,
Michael

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