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Just an FYI, the two may not be compatible for the PRO-668 (unless your possibly using any 'hacked' updates to fix/repair/convert a PRO-668 to a WS-1080). If so, be careful you do not use EZ-scan to upgrade the files or you'll brick the scanner. I'm not implying you are, or advocating the use of the 'hack', just mentioning the results if you try to use EZ-scan to update any 'hacked' scanner files, afterwards. Good luck.
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