[thelist] Prevent a Screenshot

Ken Schaefer Ken at adOpenStatic.com
Mon Feb 21 17:03:46 CST 2005


Microsoft has a DRM Server product which you may be able to leverage to do
this. It's geared towards protecting documents (preventing people from
editing them, or forwarding them on), but one of the functions it does have
is preventing either printing, or print-screen captures. The DRM client
functionality is already built into Office 2003, and you can get an add on
for IE. Additionally there's an SDK that you can use to extend the
functionality.

Just be aware that users without access to the DRM server (i.e. that can't
get an appropriate license) can not open the docs at all (since they are
encrypted).

As far as I'm aware, the server component is a free add-on for Windows 2003
Server.

Also, as you've identified, it doesn't protect against "analogue" attacks. So
someone can place their monitor on a photocopier, and take a copy. Or use a
digital camera to snap a shot of the screen. Hence "digital" rights
management :-)

Cheers
Ken

: -----Original Message-----
: From: thelist-bounces at lists.evolt.org [mailto:thelist-
: bounces at lists.evolt.org] On Behalf Of Rob Smith
: Subject: RE: [thelist] Prevent a Screenshot
: 
: >i dont waste too much time trying too hard to prevent people from
: >taking images from sites i build.
: 
: Neither am I. My problem exists within an actual software app created by
: Visual Studio.NET for example. You can View Source in a web browser. You
: can't really do that in a piece of software, at least the novice to
: intermediate can't figure that out. To help bullet proof the system, I was
: considering housing all the data on a network protected server so even if
: they take the software with them, it'll do them no good as the data isn't
: with the software.
: 
: Just wondering,
: 
: Rob



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