yes, all that old code exists still today from people taking short cuts of copying and pasting old code. Any loop or code you can think of can be found on open source and math labs at universities. Hell I just replaced a grocery store chains software they were still using windows 3.1. All those old ftp protocalls can be called at any time. All that is still in the miocrosoft reference library and still can be called upon in windows at any time.