How to crash CPython 3.1.1 in Windows XP:
python -c "import os; os.spawnl( os.P_WAIT, 'blah' )"
I reported this as a bug, <url: http://bugs.python.org/issue8036>
Workaround: it seems that spawnl is happy with an absolute path as second arg,
followed by a third arg which should be the name of the program (repeated).