PuTTY download Datei
The PuTTY suite of utilities includes pscp which is equivalent to the OpenSSH scp command. You could use it like this:
This will copy all the remote files in the folder specified to the local folder and would not require anything special on the remote end, aside from permitting the limited user ssh access, and access to the folder.
Then you would use:
To do this, the user account would have to have a /home/username/.ssh/authorized_keys file, and the SSH server would have to permit public key authentication.