> But I have a version of libui.dll (linked above), which does not have this > dependency and runs fine
I highly doubt it. The MSVCP140.dll is the C/C++ standard library on Windows, and almost every C/C++ program depends on it. Typically, Windows has some version(s) of this dll already preinstalled, in which case you do not need to redistribute it – it just works. However, when other versions are required than those that are present, you need to either bundle them or require the user to install them.
