The newest issue of German computer magazine c't has an article about a new technology integrated into Windows XP Service Pack 2 and Windows Vista. It's supposed to monitor your behaviour, e.g. which options you click in message boxes and store it in form of click profiles for each user. That data is then used to adapt Windows to change default buttons or not not display confirmation messages at all, because Windows knows what you clicked in the past.
The technology is called Adaptive Personal Response Inference Layer. That was too easy this time. Just create an acronym for the technology by using the first letter of each word :-)
Unfortunately the article is not available online. If you have access to c't 8/2008, have a look at page 158. It's fun to read.