As for the question of implementing a user-mode filesystem by implementing a SMB server, you can't really do it. Windows takes up all the ports on your own hos

As for the question of implementing a user-mode filesystem by implementing a SMB server, you can't really do it. Windows takes up all the ports on your own host. You'd need to do a lot of trickery to stop Windows itself from eating up the SMB ports, and install a "Loopback Adapter".