bit_set without a backing type counts bits from the enum's lowest value (141299eb02)
in this case it causes an off-by-one offset, so flags fall down to the one below. I experienced `LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR` -> `LOAD_LIBRARY_REQUIRE_SIGNED_TARGET`, for instance, so unsigned DLLs wouldn't load. aw.
fix is adding a dword backing type to the bit flags, like the other types in this file