- When the compiler is installed, it detects which version of Visual Studio is on your system.Qvcdefaults to the form of the option that is compatible with that version. When multiple versions of Visual Studio are installed, the compiler installation lets you select which version you want to use. In this case,Qvcdefaults to the version you choose.
Specifies compatibility with Microsoft* Visual Studio 2019.
Specifies compatibility with Microsoft* Visual Studio 2017.