Recently I saw this page:
http://www.getfoxie.com/feature/flashblock/
And they, as you can "test" for yourlself in IE, showing something like that, but when installed, there is no flashblock at all. At least using IE6 in Win2k SP4...
So this one is probably just a scam (they are from Israel, so I somewhat don't wonder...), but maybe someone know about something that realy working?
PS: one working one, but... nowhere as good, as flashblock... http://www.nirsoft.net/utils/tflash2.html
And another one, by Macromedia? But 300k in size and not 6, like the above Turn Flash... http://www.flashswitch.com/
And another: http://www.spywarewarrior.com/uiuc/fixes.htm#flash-kill