No. It removes the CSS lock of most (not all) protected DVD on the fly, So any Windows software (ie Nero, Windows Media Player) will see the disc as not protected nor region-locked. Circumnavigating region-locks is gray area when it comes to copyright laws, but using it to copy your DVD is a no-no. You'd been warned.
Note that I am not a techie nor a lawyer but as long as you use it personally to play DVD from region other than your own, and not copy DVD, it should be okay...