Paragon Software Group (PSG) has released Paragon Boot Camp Backup (http://www.paragon-software.com/home/bootcamp-backup/), a free Mac OS X-based backup solution for Windows partitions on Macs.
The backup tools that come with Mac OS X don’t support the Windows native file system NTFS and work on the file level only which has a negative effect on computer performance. Paragon Boot Camp Backup backs up NTFS Boot Camp partitions at the sector level. It creates incremental chains, where each new increment describes the changes between the current state of the backup object and the previous state.
Paragon Book Camp Backup requires Mac OS X 10.7 or higher. Additional free and commercial tools for Mac users can be found at the Mac ToolBox portal (http://tinyurl.com/msgaap7).