I'm using version 1.0.4, I do have virus scan, but already thought of that and disabled it and had the same failure code. I have looked at the technotes...issues.pdf and even tried to remove and reinstall. It doesn't complain during the install, only when I actually try to use the software within dreamweaver. From reading this thread, it looks I am having the exact same issue that jon211112 was having. It mentions a trouble ticket being opened for him, I'm curious what was the solution from that ticket? Could be my problem too