[python-win32] COM object Dispatch Error

[lucemia]

Hi:

I have a problem about using win32com in python.

I am using a software called CSTStudio to do my project.
CSTStudiod could be used in VBA Script currectly to start or execute program via COM interface, 
but it crashed in python win32com.

> h = win32com.client.Dispatch('CSTStudio.Application')   <--- it is ok!
> mws = h.OpenFile('C:\\CSTProject\\ga2layer_v1.psf')       <--- the CSTStudio will open the file currectly but failed to retrun mws.

What should i do to solve this problem?

Thanks
lucemia

Error Message:

Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.

    ****************************************************************
    Personal firewall software may warn about the connection IDLE
    makes to its subprocess using this computer's internal loopback
    interface.  This connection is not visible on any external
    interface and no data is sent to or received from the Internet.
    ****************************************************************
    
IDLE 1.2      
>>> import win32com
>>> import win32com.client
>>> win32com.client.Dispatch('CSTStudio.Application')
<COMObject CSTStudio.Application>
>>> h = win32com.client.Dispatch('CSTStudio.Application')
>>> mws = h.OpenFile('C:\\CSTProject\\ga2layer_v1.psf')

Traceback (most recent call last):
  File "<pyshell#10>", line 1, in <module>
    mws = h.OpenFile('C:\\CSTProject\\ga2layer_v1.psf')
  File "<COMObject CSTStudio.Application>", line 2, in OpenFile
  File "C:\Python25\Lib\site-packages\win32com\client\dynamic.py", line 290, in _get_good_object_
    return self._get_good_single_object_(ob)
  File "C:\Python25\Lib\site-packages\win32com\client\dynamic.py", line 275, in _get_good_single_object_
    return self._wrap_dispatch_(ob, userName, ReturnCLSID)
  File "C:\Python25\Lib\site-packages\win32com\client\__init__.py", line 123, in _wrap_dispatch_
    return Dispatch(ob, userName, returnCLSID,None,UnicodeToString)
  File "C:\Python25\Lib\site-packages\win32com\client\__init__.py", line 96, in Dispatch
    return __WrapDispatch(dispatch, userName, resultCLSID, typeinfo, UnicodeToString, clsctx)
  File "C:\Python25\Lib\site-packages\win32com\client\__init__.py", line 44, in __WrapDispatch
    return dynamic.Dispatch(dispatch, userName, WrapperClass, typeinfo, UnicodeToString=UnicodeToString,clsctx=clsctx)
  File "C:\Python25\Lib\site-packages\win32com\client\dynamic.py", line 114, in Dispatch
    typecomp = typeinfo.GetTypeComp()
AttributeError: 'NoneType' object has no attribute 'GetTypeComp'
>>> 
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