Can a Framescript event script interact with an external program?

[Rick Spiegel]

I would like to attach a FrameScript event script to the Open command in 
Frame. I would like this script to run an external program and pop up a 
warning in Frame based on the results of the external program. The 
external program can return either an exit code or a string.

And a related question: the external program referred to above is 
Perforce. Does anyone know of a plug in that would allow Frame and 
Perforce to communicate?

Thanks in advance,
Rick Spiegel
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