I tried installing this on 2 different systems (IBM laptop running WIN2K and a home built running WIN XP Pro, and 2 different printers. In all cases it: 1. did not work at all. And 2. caused my CPU usage to lock to 100% making the computer slow to a dead crawl. Even after attempting to uninstall the software, I had to resort to a system restore to make the computers usable again. Calling tech support was of no use. I wasted DAYS on this P.O.S. It made me feel good to crush that thing in a 4" vise, crushing the little ******* into permanent garbage - which it was.