> Do you have any examples of Microsoft throwing away their codebase and starting fresh? I believe that is what Apple did with the OS9 to OSX transition. Even

> Do you have any examples of Microsoft throwing away their codebase and starting fresh? I believe that is what Apple did with the OS9 to OSX transition. Even that wasn't "starting fresh". The starting point was a complete operating system: OPENSTEP. It was just a different operating system than the one they were using before.