Configuring SSH on Windows 2008 FTP with IIS7

Hello

I have a windows 2008 server currently configured with FTP. The version of IIS installed is 7.0 and FTP services are configured with User Isolation.

I need to reconfigure the FTP Server to provide file sharing via SFTP or SSH on FTP.

I know there are a lot of 3rd party applications out there that would do this in a jiffy .. but, i want to configure SSH services on TOP of my currently configured FTP Server.

Is there any way i could configure or rather 'transform' this server into SFTP without having to give up on my existing FTP configuration running on IIS 7.0 ?

Thanks !