Because: https://zachmortensen.files.wordpress.com/2013/08/microsoft-org-structure1.jpg https://zachmortensen.files.wordpress.com/2013/08/microsoft-... > Also,

Because: https://zachmortensen.files.wordpress.com/2013/08/microsoft-org-structure1.jpg https://zachmortensen.files.wordpress.com/2013/08/microsoft-... > Also, given that Windows comes with pre-installed programs that were written in C++, how did those programs get compiled to not require those Visual Studio dependencies, are MS not using Visual Studio themselves internally? They do, iirc Windows pretty much always came with "unspecified" versions of the MSVCRT "for internal use only". Also, iirc, at some point Windows took some steps to remove those from the default search paths or something.