Windows, I believe, is WTF-16. It permits surrogates (e.g., you can stick an emoji in a filename) — thus it cannot be UCS-2. It permits unpaired surrogates — th

Windows, I believe, is WTF-16. It permits surrogates (e.g., you can stick an emoji in a filename) — thus it cannot be UCS-2. It permits unpaired surrogates — thus it cannot be UTF-16.