win32com.client.Dispatch("WScript.Shell")

[Tim Golden]

[Bala]
>     iam creating an instance for shell..while 
> doing sometimes iam getting an error called 
> pywintypes.com_error (-2147221008, 'CoInitialize has 
> not been called.', None, None) 

Usually indicates that you're running within some kind
of threaded context. Try putting this before the call
to Dispatch (having imported pythoncom, of course):

    pythoncom.CoInitialize ()


TJG


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