This rollout will start with a narrow audience and expand over the next few days to cover all IE9 Beta users.
"With IE9 RC released via AU, now is good time to prepare for the final IE9 release (the Release-to-Web, RTW, build). To help our users be more secure and up-to-date, we'll eventually distribute the IE9 RTW build via AU and WU to all users," stated Microsoft.
To help prevent users who want to delay installing IE9 RTW through AU, Microsoft is providing IE9 AU Blocker Toolkit which, when deployed, prevents IE9 RTW offered as an important update via AU. This Toolkit has no expiration date and can be configured either by running the registry file on the client machines or via Group Policy in domain joined environments.
"The Toolkit also provides an unblock procedure which can revert the block. We believe this approach strikes a good balance by helping customers become more secure and letting organizations control when they are ready to deploy IE9 to their users," Microsoft said.
The IE9 BT has no impact on the IE9 RC AU deployment to IE9 Beta customers and, further, willn't block the final version of IE9 offered to users who already have pre-released versions of IE9 installed on their machine.
There're different registry keys used to block or unblock automatic delivery of IE9 and IE8. If you previously used the IE8 BT to block IE8 from being offered as an important update, you'll need to run the IE9 version of the BT to block IE9 from being offered via AU.
Download: IE9 Blocker Toolkit
[tags]automatic update,au,ie9,internert explorer 9,rc,release candidate,rtw,ie9 blocker toolkit,ie8,internet explorer 8[/tags]