Super Flexible File Synchronizer enables you ot back up your data and synchronize PCs, Macs, servers, notebooks, and online storage space. The software comes with support for FTP, SSH, HTTP, WebDAV, and Amazon S3. You can use ZIP compression and data encryption. On Windows NT/2000 or higher, the scheduler can run as a service - without users having to log on. There are powerful synchronization modes, including Standard Copying, Exact Mirror, and SmartTracking.