Windows 7 gets IE8 killswitch

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Microsoft is tweaking the number of features that can be turned off in Windows 7, with the latest beta build adding Internet Explorer 8 to the killswitch list according Microsoft Product Manager, Jack Mayo.

In the official Microsoft Windows Engineering Blog, Mayo says "If a feature is deselected, it is not available for use. This means the files (binaries and data) are not loaded by the operating system (for security-conscious customers) and not available to users on the computer." However it is important to note that the files are actually just staged, meaning the feature that has been killed can be brought back to life without resorting to the installation DVD.

As well as IE8, you will be able to deselect Media Center, Media Player, DVD Maker, Search, Handwriting Recognition, Fax and Scan, Gadget Platform and XPS Viewer in addition to the previously 'switch-offable' items in earlier betas.

Unfortunately, there seems little chance that any of the above will be optional components during installation any time soon if ever. Mayo makes it quite clear that the "vast majority of feedback" received was to "reduce the amount of potential complexity in getting a PC running" and not to add items such as Internet Explorer to the optional components list during setup.

Despite this, I wonder just how this will impact upon the oft repeated Microsoft argument that web browser and operating system are somehow joined at the coding hip? Was this latest move, albeit a superficial separation of the two, in response to the continuing pressure from the European Commission? Will we now see a Windows 7 Europe edition which not only has a browser killswitch but also offers users a choice of alternative browser options if IE8 is disabled? I am inclined to think affirmative for the former, but remain to be convinced of the latter.

Dani AI

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As spotted, the Windows 7 betas started putting more system components behind an on/off toggle — and that engineering choice sits alongside a regulatory thread: the European Commission’s browser inquiry pushed Microsoft to propose both a browser‑less Windows 7 “E” SKU and a formal browser‑choice (ballot) UI for EU users rather than simply shipping a different installer. Microsoft documented the proposal and later rolled the ballot out as part of its legally binding commitments. (blogs.microsoft.com)

What “turning off” Internet Explorer actually means in practice is often misunderstood. The Windows Features mechanism typically disables the browser UI but leaves shared libraries and embeddable components (the Trident/MSHTML engine, WinINET and the WebBrowser control) in place because other Windows features and third‑party programs can host them. The platform UI even warns that turning a feature off does not remove its files from disk, and developer documentation shows how MSHTML is intended to be hosted by other apps — so flipping the IE switch can create compatibility headaches if apps rely on those components. (windows.microsoft.com)

Practical takeaway: is right that users could already install and set other browsers as default, but the EU remedy formalized a visible choice for millions of users for a fixed period (the ballot obligation was time‑limited). For administrators who want to reduce browser attack surface, disabling the IE UI is not a complete solution — inventory apps that embed MSHTML, plan migrations to supported hosts (WebView2/Edge for modern embedding), use Group Policy to control defaults, and test widely before removing features. The ballot requirement later expired, but the technical tradeoffs remain important when considering a “killswitch.” (arstechnica.com)

jbennet 1,618 Most Valuable Poster Team Colleague Featured Poster

Will we now see a Windows 7 Europe edition which not only has a browser killswitch but also offers users a choice of alternative browser options if IE8 is disabled

Um, we have had that since IE8

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