Python cgi Apache os.system()

[naima.mans at gmail.com]

Hello :)

I have installed Apache on windows...
The server work well, and my python script also

but when I want in my python script to run a System command like
os.system(my_command) the script doesn't do anything!

here the error.log

[Wed Nov 08 14:19:30 2006] [error] [client 127.0.0.1] The system cannot
find the drive specified.\r, referer:
http://127.0.0.1/cgi-bin/extract_source.py

When i run the python script manually it works!

i think it's a user access probleme but i don't know how to resolve it
!

please help .... 
thanks