The key files were on the PC, because my customers just emailed me back that it worked. I had emailed them the ftp link to the recovery tool. This is a great relief to me as well as them. Because it was something automated they were able to do it themselves too, saving me going out there and saving them another service call.

So my thanks to everyone in this thread for sharing your experiences.

Also, if anyone from Dr.Web is reading this thread, my deepest thanks to you. I never gave Dr.Web much thought until now, but you did a good thing here and I'll be investigating the efficacy of your products and services.