Microsoft released Internet Explorer 9 Blocker Toolkit intended at IT administrators to disable automatic delivery of Internet Explorer 9 as an important class updates via Automatic Updates and the Windows Update and the Microsoft Update sites.

IE9 Blocker Toolkit intended for organizations that would like to block automatic delivery of IE 9 machines in environments where automatic updates is enabled . IE9 blocker Toolkit will not expires.

To help our customers become more secure and up-to-date, Microsoft will distribute Windows Internet Explorer 9 as an important update through Automatic Updates for Windows Vista SP2 for x64 and x86, Windows Server 2008 SP2 for x64 and x86, Windows 7 x86 RTM and higher and Windows Server 2008 R2 RTM and higher for x64. This Blocker Toolkit is intended for organizations that would like to block automatic delivery of Internet Explorer 9 to machines in environments where Automatic Updates is enabled. The Blocker Toolkit will not expire.
Note:

  • For computers running Windows Vista, Windows Server 2008, Windows 7 or Windows Server 2008 R2 the Blocker Toolkit prevents the machine from receiving Internet Explorer 9 as an important update via Automatic Updates on the Windows Update and Microsoft Update sites; Internet Explorer 9 will be listed as an optional update.
  • The Blocker Toolkit will not prevent users from manually installing Internet Explorer 9 as a Recommended update from the Windows Update or Microsoft Update sites, from the Microsoft Download Center, or from external media.
  • Organizations do not need to deploy the Blocker Toolkit in environments managed with an update management solution such as Windows Server Update Services or Systems Management Server 2003. Organizations can use those products to fully manage deployment of updates released through Windows Update and Microsoft Update, including Internet Explorer 9, within their environment.
  • Even if you used the Blocker Toolkit to block Internet Explorer 7 or Internet Explorer 8 from being installed as a high-priority or important update, you will still need to use the Internet Explorer 9 version of the Blocker Toolkit to block Internet Explorer 9 from being installed. There are different registry keys used to block or unblock automatic delivery of Internet Explorer 7, Internet Explorer 8 and Internet Explorer 9

Blocker toolkit contains an executable blocker script, and a a Group Policy Administrative Template  (.ADM) file.

Download IE9 Blocker Toolkit

Read  Toolkit to disable Automatic delivery of IE9