Up to Visual Studio 2013 all you needed was msvcr[version].dll and msvcp[version].dll.
Now they changed the DLLs with 2015.
What do I need to include in order to avoid a red
In general, you can use dependency walker to find the list of dependent dlls.
Regarding the visual studio runtime dlls, what you are mostly concerned about are the dlls with Visual studio specific versions in them.