I'm assuming you mean create an iso of a system before it crashes so you can restore it? Acronis has a retail and oem solutions. I am using the oem version you have to buy 50 licences at a time. I have had so so luck with getting it installed but I may just be having bad luck. the product seems very popular but I am not very impressed with the tech support. if your interested i'll email you my reps contact info for OEM
Although i was thinking. Why can't you set up a new virtualbox and set it to boot from an iso of the acronis program cd itself. Once this has booted, then point it to the .tib stored on your hdd. If you shared the folder the .tib is in, it would appear as a network drive which you could refer acronis to? This would then restore the .tib file to your new virtualbox?
I can't seem to get acronis home to do that, it will boot from my aconis cd but then it won't load anything but tib files no mapped drives or anything. I can just seem to load iso images