[python-win32] Catch system level events in python

[Jan Schneider]

Hi,

i am developing a windows service using python-win32.
Now I am searching for a possibility to get a notification when a user is 
trying to shutdown the system.
In certain cases I need to cancel this shutdown,
Does anyone knows how this could be done?

Is it possible to catch system level events in python like in other 
programming languages as for example C#:
http://mail.python.org/pipermail/python-win32/2008-January/006645.html

Thanks,
Jan