Another disaster about to happen is Games for Windows Live, a online DRM scheme, used by many games, but in particular GTA IV, which doesn't have much on online features except for the DRM check. It has been announted that GFWL is going to shutdown July 1st. Many developers/publishers have indicated that they are going to remove/replace it, but Rockstar not only hasn't mentioned anything in that sense, it has recently updated the fine print on the steam store for GTA IV adding new clauses:
Access to special features may require internet connection, may not be available to all users, and may, upon 30 days’ notice, be terminated, modified, or offered under different terms.
Unauthorized copying, reverse engineering, transmission, public performance, rental, pay for play, or circumvention of copy protection is strictly prohibited
Partner Requirements: Please check the terms of service of this site before purchasing this software. rockstargames.com/eula
So while Rockstar is washing their hands if their offline, single player, triple-A game stops working in six months, and also prohibiting circumvention of this 'protection', GTA IV is happily being sold by Steam, even today being promoted in their store front page as a daily deal of their winter sale.