>How can a picture be viewed but not be able to be copied? If you mean prevent straight digital capture from within windows: it can't. You could force users to boot from your own home-made operating system you could make it very hard (by not including screen-capture code in your operating system) ... but even that fall down if it can be run within a "virtual partition" (because anything resident in memory can be captured). Likewise, if you forced them to use non-standard hardware to read the source disks (or forced the to install a rootkit which disabled any standard hardware you had first :o) you could make it very difficult. But of course, if someone are prepared to video the screen NOTHING is safe Q PS: re Herschell's PDFs. They don't prevent screen-capture methods do they?
