Automated Dead code detection in native C++ application on Windows?

Question

Background

I have an application written in native C++ over the course of several years that is around 60 KLOC. There are many many functions and classes that are dead

Answer 1

Ask the linker to remove unreferenced objects (/OPT:REF). If you use function-level linking, and verbose linker output, the linker output will list every function it can prove is unused. This list may be far from complete, but you already have the tools needed.