InformationWeek has an article about a reliability update posted to Windows Update for http.sys. The problem was that http.sys plus a recent update to a certain vendor's anti-virus software leads to a blue screen. Because of the type of failure, it took a while for the Windows Error Reporting crashes to get debugged back to us. We released a fix for the bug and attached it to the Error Reporting bucket. This meant that after the crash occured and you reported it to Microsoft, the UI would inform you of a patch, and let you install it. Still the crashes continued to come in, in bigger numbers. It was time to do something more, so we decided that the best thing for our customers was to get it released on windows update for everyone.