See:
- http://www.mathworks.com/matlabcentral/fileexchange/32098-ssh-sftpscp-from-matlab-with-public-key-authentication
- http://www.mathworks.com/matlabcentral/fileexchange/25256-scpsftp-from-matlab
- http://www.mathworks.com/matlabcentral/fileexchange/27999-ssh-from-matlab-updated-+-sftpscp
It is not WinSCP, but allows accessing a remote file system.
