B&W's no-cd patch and the ip security check question

[bishop007]

what is that B&W IP security check at gamecopyworld.com mean. Will it detect that you are playing a no-cd version of the game and report it to the isp provider? I installed my original cd of B&W to my sis's computer and used the no-cd patch on it and am playing with the cd on my computer.
so what i am getting at is do i need to d/l the IP security check...especially if we both go online at the same time in the multiplayer game.