See http://www.berezniker.com/content/pages/visual-foxpro/check-if-exe-running-and-optionally-terminate-it

>Before I kick off a process I need to know if there is an instance of Microsoft Excel already running. If there is I want to inform the user to shut it down before proceeding.
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>I was thinking that GETOBJECT(,"Excel.application") might be a good way but while testing, my session of VFP locked up. Is there a Windows API that cand do this? Again, I am testing upfront as a precautionary measure, I have no desire to use an existing Excel reference - just want to have the user start with a clean slate.