I tried to download Q323172i.exe for Windows NT 4 SP6a, but apparently it was removed. --2014-04-24 22:04:12-- http://download.microsoft.com/download/winntsp/Patch/Q323172/NT4/EN-US/Q323172i.exeResolving download.microsoft.com (download.microsoft.com)... 23.220.100.185, 23.220.100.179, 2001:428:2402:5::3feb:2483, ...Connecting to download.microsoft.com (download.microsoft.com)|23.220.100.185|:80... connected.HTTP request sent, awaiting response... 404 Not Found2014-04-24 22:04:12 ERROR 404: Not Found. A Google search for Q323172i.exe led me to this page: http://support.microsoft.com/kb/323172 I tried to download Q323172i.exe for Windows NT 4 SP6a via that page, but when I click on the download link, it leads me to a download page for a different update (Q815021i.EXE) for a different vulnerability. Does anyone know if there is a logical/legitimate reason why Q323172i.exe for Windows NT 4 SP6a was removed? Phil