Abandoned
Please use https://github.com/buptczq/WinCryptSSHAgent, which is more powerful.
This small tool is intended to help use Cygwin/msysgit sockets with the Windows Linux Subsystem.
It was specifically designed to pass SSH keys from the KeeAgent module of KeePass secret management application to the ssh utility running in the WSL (it only works with Linux sockets.
See blog post for more infomation.
ForwardUnixSocket.exe C:\path\to\socket\file.sock
You have to check "Public networks" on the dialog of Windows Firewall, otherwise WSL 2 can't pass firewall.