def _invalidWin32App(pywinerr):
    """
    Determine if a pywintypes.error is telling us that the given process is
    'not a valid win32 application', i.e. not a PE format executable.

    @param pywinerr: a pywintypes.error instance raised by CreateProcess

    @return: a boolean
    """

    # Let's do this better in the future, but I have no idea what this error
    # is; MSDN doesn't mention it, and there is no symbolic constant in
    # win32process module that represents 193.

    return pywinerr.args[0] == 193