I wanted to suggest having the built-in Software Update as a separate executable from the browser (but still integrated) so that it can be elevated without elevating the whole browser. Not only would this be great for Windows 7 (and Vista) with UAC, but for privilege management software, like Viewfinity Privilege Management or BeyondTrust PowerBroker for Desktops, which allow you to create policies to elevate software that need admin privileges for installation or other admin tasks. [http://www.viewfinity.com/Products/PrivilegeManagement/] [http://www.beyondtrust.com/PowerBroker-Desktops-Windows-Edition.aspx?section=PowerBroker-Desktops-Windows-Edition]