Can I post a suggestion here? I hope someone in the Spybot development team will read it.

Please improve the documentation in Spybot. Make it clear for the user that this shredder has its limitations.

And one little problem is that after shredding many files, the shredder window are full of completed jobs. In order to clear the window, Spybot needs to be shut down and restarted. This should not be necessary.