This feature is not needed by most people. And if you do put it in, it must have a way of being disabled by those that do not want it. Some programs, you can only update within the same Major Version Number, then you need to buy a new License Key. Such as Winzip, ISOBuster, ClipCache Pro .. Others, like WinRar, can update all they want. Most people check for updates regularly and things like Java and Flash and Shockwave will advise you when updates are out.