The Internet Explorer 7 Blocker Toolkit enables IT Administrators to disable automatic delivery of Internet Explorer 7 as a high-priority update via Automatic Updates and the Windows Update and Microsoft Update sites.
http://www.microsoft.com/downloads/...F7-5D44-482B-9DBD-869B4A90159C&displaylang=en
http://www.microsoft.com/downloads/...F7-5D44-482B-9DBD-869B4A90159C&displaylang=en