Cookie IDs

I created a program that removes all cookies except ones needed to log in, and they used to show an ID like below.

owner@bb4w.conforums
owner@facebook
owner@forum.qbasicnews
owner@forums.orange.co

But MS or someone has changed the names so that cookies can no longer be identified as below

I479PWFU.txt
9N77BBUV.txt
L0IQ8DU8.txt
4EQ7N0XC.txt

Who is responsible for the changes, and can it be reversed so as to see their ID again?

Gordon

Please read this article by Bill Pytlovany of WinPatrol fame:
Windows Update Changes IE Cookies Names
http://billpstudios.blogspot.com/2011/08/windows-update-changes-ie-cookies-names.html