Import Error when run django with wsgi (apache)

Import Error when run django with wsgi (apache)

I found the problem when I run django from apache. When I run my program
in debug mode ( manage.py runserver in cmd ) , everything is work. But
when I run with apache, It show error:
ImportError at /systeminformation/ DLL load failed:
The specified module could not be found.
The error is occur when I import win32file. I use django 1.5.2 with apache
2.2 and run with mod_wsgi.
Anyone can solve this problem?
thank you very much