The final version of IE 7.0 will be available anytime this month on Microsoft IE Website. Like other Microsoft Security Updates and Patches, IE 7.0 will also be distributed via Automatic Updates for Windows XP SP2 and Windows Server 2003 SP1 users.
If you have disabled Automatic Updates on your Windows system, you will be prompted to download and install IE 7 when you perform a manual scan for updates using the Express install option on the Windows Update or Microsoft Update sites.
Microsoft has provided a simple registry key to block automatic delivery of Internet Explorer 7 on your computer. Just download and install the following registry file.
For large corporates that may want to prevent their employees from installing IE7, Microsoft has provided a free IE7 Blocker Toolkit that contains a Group Policy Administrative Template (.ADM file) to allow administrators to centrally execute the action across systems in their environment.