In order to compile a few Python modules, following https://wiki.python.org/moin/WindowsCompilers, I just tried to install "Microsoft Visual C++ 14.0 standalone: Visual C++ Build Tools 2015 (x86, x64, ARM)".
I found the installer here Microsoft Build Tools 2015, but:
- strangely the Full installer "BuildTools_Full.exe" (not Net install) is only 24.4 MB, and ~ 124 MB once installed (so obviously all the SDK is not installed) 
- This option: "Windows SDK": - Install Microsoft Visual C++ Build Tools 2015. Check Windows 8.1 SDK and Windows 10 SDK options. - was not offered during the install process. 
- the compiler - cl.exeis not even present on my whole system after the full successful install
Question: what is actually Microsoft Build Tools 2015 if it does not install any compiler and/or SDK?
And where can one get the real "Visual C++ Build Tools 2015"?
Note:
- I'd like to use this one and not newer because of compatibility with previous builds I made
- I don't want to install Visual Studio but only the standalone build tools

 
    