Ah! Another very very very futile attempt at "securing the copyrights" and all that.
Here's what I've been saying, just like everyone else: If it can be seen, heard, or felt, it can be copied - If you try to stop people from doing it, they'll just do that twice as eagerly.
So what's going to stop a im8g k0py1ng d00d from writing a screen capture program of their own that this plugin won't detect? What's going to stop the same d00d from firing up a debugger and poking around the ActiveX control, or opening the encrypted file and cracking the encryption? Nothing, I guess...
A small hint to anyone who's afraid of capturing images: If you fear that your pictures are going to be ripped off, don't put them to the web. I'm not afraid, so I have put them to the web (obligatory self-plug... =)
Also remember that if someone copies the images, the copyright laws will protect you - even if you didn't try to stop the thief with a shotgun =)
-- Weyfour WWWWolf, a lupine technomancer from the cold north...