Computer Crashed With Dreamweaver Open Lost...

I was working in Dreamweaver 2004, my powersupply went dead, my machine shut off. I re-booted, now my site that I had hosted on my computer is not hosted anymore. Is this a common occurance with Dreamweaver when shut down with the program open? How can this be avoided in the future? Do I have to go through re-setting up the hosting every time I have the power go bad?