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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 FrameworkDir64(self):
 """ Microsoft .NET Framework 64bit directory. """

        # Default path
        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework64')

        # Try to get path from registry, if fail use default path
        return self.ri.lookup(self.ri.vc, 'frameworkdir64') or guess_fw