hello, I am evaluating a new program which is to be considered comparable to Norton Ghost or Acronis True Image except it is billed to be extraordinarily fast.I think I may have a problem because the new program posted a message that volume shadow service is not supported on drive C. as a result it started the backup in "archive mode." This mode is no quicker than it was previously so I assume the speedy version requires the volume shadow copy service. I am running windows XP SP3 with four gig of RAM and a 1.8 gauge dual core processor.the software is from Horizon DataSys and is called Drive Cloner RX. I have been using their program Rollback RX which had an earlier version of the cloning program built in. I know nothing about volume shadow copy but the articles on Google really didn't shed any light from the perspective of a nerd. any and all help would be much appreciated.