[IronPython] Stopping, Closing, and Unloading of running IronPython code?

[Doug Blank]

If you have embedded IronPython engines (and perhaps a few other DLR
languages) running in a thread, what is the recommended method of
stopping the running programs, and calling the objects' delete
methods?

For example, say you have a serial port open in an IronPython program
running in a thread, and you want to stop the thread, and close the
port? Is there something general that would take care of all closing,
just like it would if you killed a process?

Thanks for any suggestions,

-Doug