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 IE9 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.

Download details: Toolkit to Disable Automatic Delivery of Internet Explorer 9