When shown the huge list of operating systems curl runs on, people often ask me which is the strangest, or hardest, operating system to keep curl support for. The answer is always, and will probably always remain: Windows.
No other operating system has so many custom, special, weird and quirky ways that require special-case solutions in the code.
@bagder Are the newer versions of Windows better than the old ones? 🤔 The thing is of course, that there is the Win32 API, which no other OS (except for ReactOS) uses.