This program requires PyCrypto and lxml.

lxml binaries for Windows can be found at <http://pypi.python.org/pypi/lxml>
PyCrypto binaries for Windows (only 32bits) can be found at <http://www.voidspace.org.uk/python/modules.shtml#pycrypto>

In a 64bits version of Python, in Windows, installing PyCrypto is non-trivial so cryptopy can be used instead.