[python-win32] win32com + Excel + Django + Apache = problem

[user]

Hello,

I have some problems while opening Excel (via win32com) document in a web
application
running under Apache(mod_wsgi)/Windows 2008 Server (there is no
problem when the application is running on django developer server -
one thread).

My code:

def my_view(request):
      import pythoncom
      from win32com.client import DispatchEx

      pythoncom.CoInitializeEx(pythoncom.COINIT_MULTITHREADED)
      xl = win32com.client.dynamic.Dispatch('Excel.Application')
      xl.DisplayAlerts = False
      xl.Visible = 0
      doc = xl.Workbooks.Open("C:\\path\to\\file.xlsx")
      doc.Saved = True
      ...
      doc.Close(SaveChanges=0)
      xl.Quit()
      pythoncom.CoUninitialize()

Error message:

(-2147352567, 'Exception occurred.', (0, u'Microsoft Office Excel',
u"Microsoft Office Excel cannot access the file 'C:\\path\to\
\file.xlsx'. There are several possible reasons: The file name or path
does not exist. The file is being used by another program. The
workbook you are trying to save has the same name as a currently open
workbook.", u'C:\\Program Files (x86)\\Microsoft Office\\Office12\
\1033\\XLMAIN11.CHM', 0, -2146827284), None)

I know that problem is localized somewhere in threading, but where?
I'm using pythoncom.CoInitializeEx(pythoncom.COINIT_MULTITHREADED).
Maybe changing the server will solve the problem?

Libs: Django 1.2, Apache 2.2 (mod_wsgi), win32com (latest)

I hope somebody can help me.

Thank You,
regards.
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