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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _fixWindowsPath(dll):
 """ When the path to the DLL is not in Windows search path, Windows will not be able to find other DLLs on the same directory, so we have to add it to the path. This function takes care of it. :parameters: - `dll` (str) - File name of the DLL """


    if sys.platform[:3] != 'win':
        return # Nothing to do here

    pathToDll = os.path.dirname(dll)
    currentWindowsPath = os.getenv('PATH')

    if pathToDll not in currentWindowsPath:
        # We will prepend the path, to avoid conflicts between DLLs
        newPath = pathToDll + ';' + currentWindowsPath
        os.putenv('PATH', newPath)