TO better understand the operating system's dependency on IE, iDefense Labs removed IE from a default installation of Windows XP. Decoupling the browser from any Windows version after 98 is a complex and poorly documented process.
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The decoupling process was far from straightforward. It involved booting from a floppy disk and removing numerous Dynamic Link Library (DLL) and executable files. It is important to note that simply removing IE through the Add/Remove Applications program in the Control Panel merely removes shortcuts to the browser from the desktop and Start meny; it does not permanently remove any components of IE.
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iDefense lab test show that the following features of Windows fail to work properly when IE is removed:
- Windows Update
- Device Manager
- Remote Assistance
- Help and Support
- All Troubleshooting Wizards
- Activate Windows
- Disk Defragmenter
- Disk Backup
- Program Compatibility Wizard
- Address Book
- Search For People
- Windows Media Player
- Windows Catalog
- Hearts and Spider Solitaire
- Internet Games
As shown, key functionality is broken when IE is removed. For example, some of these applications are critical to the security of the computer, such as Windows Update and the Device Manager. These applicatins may have failed because the DLL files that handle Web connectivity through IE were removed with the browser. Certain DLL files were restorded to see if this was indeed the case; however, this further distorted the desktop, dut did restore some functionality in select applications. This demonstrates the deep level of integration between IE and the operating system. Because os this, iDefense recommends that users not attempt to remove IE from Windows.