While it may be possible some day to stop the native Windows support for "print screen", I don't think it will solve the real problem - protecting your content. This is because there are so many different ways to do it. Print screen is one, screen capture utilities are another, VGA digitizers that are connected to the monitor can't even be detected ... but maybe the most obvious and most impossible to handle is simply the cell phone camera taking a picture of the screen (which works surprisingly well for many PPT-based webinars).
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Asking User's comment: thanks and totally valid point about cell phone cameras!
wow, that is a great question! I am not sure if you can block that as it probably is dependent on the local system/os, however, i wonder if the new protocols could weave in a virtual channel to stop that type of direction.
Not unless you have complete management control of the endpoint and and policy control of the end user. Chris Midgley raises an interesting viewpoint above and by extension I suppose the question is whether the webinar is the best forum for very sensitive information?
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