I am running a trial version of Paragon Backup & Recovery 10 Suite. I've ran through the file backup wizard and backed up a whole bunch of files to a new .pfi archive located on another networked computer. This was successful. Moments later I decided to try out the incremental file backup feature. I've changed none of the files that I have backed up. I right-clicked on the archive I just made, and selected "Incremental File Backup...". Immediately I saw an "Operation Failed" dialog box with the following text: The OS is fully patched Windows XP Home SP3 32-bit. I am backing up to a networked computer running Windows 7 Ultimate x64, but that really shouldn't matter.