For what it's worth, the world has changed since then: Core_kernel (which is the highly portable bits of Core, which is most of it) works on Windows just fine.

For what it's worth, the world has changed since then: Core_kernel (which is the highly portable bits of Core, which is most of it) works on Windows just fine. Indeed, WODI, which is the best windows package manager for OCaml right now, ships with it.