error message in Python...

[erez]

Hi,
When i try to run python script that uses com object from dll (was
registered already) i got the next error message
the script already was run on some other computer (win2k, xp) but in
this specific device it refused.

The Message:
 dispatch, userName =
dynamic._GetGoodDispatchAndUserName(dispatch,userName,clsctx)
  File "C:\Python22\Lib\site-packages\win32com\client\dynamic.py",
line 81, in _GetGoodDispatchAndUserName
    return (_GetGoodDispatch(IDispatch, clsctx), userName)
  File "C:\Python22\Lib\site-packages\win32com\client\dynamic.py",
line 72, in _GetGoodDispatch
    IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx,
pythoncom.IID_IDispatch)
pywintypes.com_error: (-2147024770, 'The specified module could not be
found.', None, None)


Does any one know what it's mean ???