Modules are individual features that the server uses to process requests. The Web server was redesigned in IIS 7.0 to enable you to customize a server by adding or removing modules to meet your specific needs. Windows 7 and Windows Vista also include IIS features, but the available features depend on the operating system versions. Windows Server 2008 R2 and Windows Server 2008 operating systems have all the IIS features needed to support the hosting of Web content in production environments. IIS 8.0 is the version that is part of Windows Server 2012, and Windows Server 2012 R2 includes IIS 8.5. IIS 7.5 is the Web server role in Windows Server® 2008 R2 and the Web server in Windows® 7. Version 7.0 of IIS is included with Windows Server® 2008 and Windows Vista®. IIS is Microsoft Web server role that is included with all versions of Microsoft's operating systems, and also powers Windows Azure Web Sites to provide robust cloud-based PaaS (Platform as a Service).

You can also refer to Installing and Configuring IIS 7 and Above. However, if you choose to install IIS manually, you can use this article for guidance. If you are a QuickTime 6 Pro user, see this article: before proceeding with this installation.You can use Microsoft® Web Platform Installer (Web PI) to easily install Internet Information Services (IIS) and applications that run on IIS. Installing QuickTime 7 or later will disable the QuickTime Pro functionality in prior versions of QuickTime, such as QuickTime 6. If installed on other versions of Windows, it may not offer full functionality. QuickTime 7 is for use with Windows Vista or Windows 7. If you still need this legacy plug-in, you can add it back using the custom setup option in the installer. The QuickTime web browser plug-in is no longer installed by default and is removed if you have a previous version of QuickTime on your PC. For information on the security content of this update, please visit this website. QuickTime 7.7.9 contains security updates and is recommended for all QuickTime 7 users on Windows. If you no longer need QuickTime 7 on your PC, follow the instructions for uninstalling QuickTime 7 for Windows. All current Windows web browsers support video without the need for browser plug-ins. New versions of Windows since 2009 have included support for the key media formats, such as H.264 and AAC, that QuickTime 7 enabled. Important: QuickTime 7 for Windows is no longer supported by Apple.

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