I know it's an ancient thread, but it's very high in Google results for "af_unix perl" query, so I'm leaving an answer for people who might find it there.

It is now possible to use AF_UNIX sockets with Perl under Windows. However, it requires a modern version of Windows, at least Windows 10 1803. Additionally, your Socket.pm version must be >= 2.029.

In reply to Re: AF_UNIX Domain Sockets on Windows using IO::Socket::UNIX by Anonymous Monk
in thread AF_UNIX Domain Sockets on Windows using IO::Socket::UNIX by agarsha

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