RSJ HD Image is a software which makes full hard disk partition backups.
It is not only a file-backup solution, but it backs up all programs, settings, preferences and documents, or, in other words, a snap shot of a hard disk partition that allows to restore it to the exact state as it was at the time of the backup.
After the partition is restored, all settings, and preferences, programs etc. are back!
If the backup is needed just boot from the first backup disc and wait for the restore to complete.
After restore no reinstall or reconfiguration of Windows or other programs etc. is necessary.

The software doesnot allow compression so its not very handy solution for keeping frequent backups even iso files takes same space as your existing backup partition. I would suggest compression and encryption should be added to it.