Currently NVDA can only be compiled with Microsoft Visual c++ 2012 update 3 or higher, or Microsoft Visual C++ 2013. We should support compiling with Microsoft Visual C++ 2015. This requires Scons 2.4.1 and multiple fixes to our source code as VC 2015 is much more pickier about casting truncation on 64 bit (specifically in regards to HWND and HANDLE).
Incubated in 5d76183.
The current deployment plan for this is:
Incubated in a74f6c2.
Incubated in d287eef.