I am looking for the Visual Studio 2017 Build Tools. Are they still available somewhere?
I can find the 2015 and 2019 versions. The 2017 version seems impossible to find.
Due to toolchain limitations, I unfortunately cannot use the 2019 version to install MSVC141.
It is not clear how Microsoft decided not to make VS2017 Build Tool installer an obvious option for you to download, but maintainers on Chocolatey have packed up every recent releases, so you can download and install from there.
Alternatively, the chocolatey install script contains a link to Microsoft servers where the VS 2017 Build Tools Installer is still available.