<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def VSTools(self):
 """ Microsoft Visual Studio Tools """

        paths = [r'Common7\IDE', r'Common7\Tools']

        if self.vc_ver >= 14.0:
            arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
            paths += [r'Common7\IDE\CommonExtensions\Microsoft\TestWindow']
            paths += [r'Team Tools\Performance Tools']
            paths += [r'Team Tools\Performance Tools%s' % arch_subdir]

        return [os.path.join(self.si.VSInstallDir, path) for path in paths]