VS2017 and missing "api-ms-win-core-rtlsupport-l1-2-0.dll" on Win7/XP
Okay, this is quite interesting: Just now my VS2017 found a new update. Apparently that updated my VS2017 from v15.2 to v15.3.1. The runtime libraries were updated as well, it seems!
There are now two directories, VC\Redist\MSVC\14.11.25325 and VC\Redist\MSVC\14.11.25415, inside my VS2017 install directory. The vcruntime140.dll exists in both directories. But the newer version (25415, right) has quite different dependencies, compared to the older one (25325, left):
Only the "new" version has dependencies that are missing on Windows 7. So, I should be fine going with the "old" version. But it means I'm locked to the "old" version. Is this normal / intended ???
(BTW: Both DLL versions from VS2017 v15.3.1 are newer than the one I originally took from v15.2)
[EDIT]
So, it was just brought to my attention that there is a subtle difference between the VC\Redist\MSVC\14.11.25325 and VC\Redist\MSVC\14.11.25415 directories: The 25415 directory has all DLL files inside another sub-folder called onecore, the other one doesn't. Apparently, this means that the "newer" DLL versions (the one with onecore sub-folder) are not supposed to be redistributed with normal Desktop applications; they are strictly for the "OneCore" Mobile/IoT platform.
Conclusion:
M$ did a great job to design the Redist directory structure as confusing as possible. Putting the version numbers of the "normal" and the "onecore" redistributables on the same level of the directory hierarchy (rather than having separate onecore and desktop directories on that level) indicates that those directories represent different versions of the same thing - which isn't the case at all :-/