问题
I need to do some Assembly coding on VS 2015 and for it I need to use an include file that uses certain C functions. The file worked perfectly on VS 2012 and 2013, but due to some library changes on VS 2015 (as far as I understand), it gives an error on the linking process. So, I was advised to set my Platform Toolset back to VS 2012 or lower, but the only ones that appear on the changing menu are the 2015 ones. I tried to download and install the said toolkits, but even then they don't appear in the drop-out menu. Is there something I'm doing wrong, or is there another way to do this? (eg. an include file with basic print and _getch functions that works on VS 2015) Here is a screenshot of the Toolset selection screen, if it helps:
来源：https://stackoverflow.com/questions/35663572/platform-toolset-change-on-vs-2015