That picture that 9thinfSword posted are the files for the games that the Ubisoft launcher supports. They aren't ads, they aren't invasive and have been there since you first installed the launcher which you agreed to do in order to use the game in the first place. That image on my PC was created Tuesday, March 02, 2010, 9:25:16 PM for example.
I'm really not seeing what the problem here is if Privateer is talking about that image. You never see those images unless you start that game. There's no popups, there's no in game ads, there's no pushed notifications. In all it's 74MB on my system, which is basically nothing with today's hard drive sizes. Heck, I have individual files that are larger than that.
If 74MB is pushing you over your bandwidth caps, A) you need a new ISP stat without usage caps, and B) you need to stop downloading so many movies. heh
I'm still not seeing what the problem is, sorry... I've started my Launcher 10 times tonight and not had any new patches or anything.