error message in Python...

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._GetGoo dDispatchAndUse rName(dispatch, userName,clsctx )
File "C:\Python22\Li b\site-packages\win32c om\client\dynam ic.py",
line 81, in _GetGoodDispatc hAndUserName
return (_GetGoodDispat ch(IDispatch, clsctx), userName)
File "C:\Python22\Li b\site-packages\win32c om\client\dynam ic.py",
line 72, in _GetGoodDispatc h
IDispatch = pythoncom.CoCre ateInstance(IDi spatch, None, clsctx,
pythoncom.IID_I Dispatch)
pywintypes.com_ error: (-2147024770, 'The specified module could not be
found.', None, None)


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