The benefits of using WinSCP Server include:
PubkeyAuthentication yes
You have just built a "WinSCP server" using OpenSSH for Windows.
WinSCP and Server Integration: A Complete Guide to Secure File Transfers
Officially called , this component allows a Windows machine to act as an SSH-based file transfer host. Unlike full-featured SSH servers (like OpenSSH or Bitvise), WinSCP Server focuses strictly on file transfer protocols (SFTP and SCP), intentionally omitting remote shell (SSH) access for security and simplicity.