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When authoring an installation package , developers define features in the Feature Table of the MSI database. This allows for:

In the context of the , a feature is a specific part of an application's total functionality that a user can recognize and choose to install independently. For example, in a productivity suite, a feature might be a spell-checker, a thesaurus, or a collection of clip art. Key Characteristics of Windows Installer Features

: Installing certain features only if specific launch conditions (like a specific OS version) are met. Windows Installer

For managing built-in (like Hyper-V or WSL) rather than application features, administrators typically use tools like DISM or PowerShell cmdlets like Install-WindowsFeature . Windows Installer Features - Win32 apps - Microsoft Learn

: Reinstalling or repairing specific features rather than the entire application if files become corrupt. When authoring an installation package , developers define

: Features can have a parent-child relationship. If a child feature is selected for installation, its parent feature is automatically included.

: Letting users skip unnecessary tools to save disk space. : Features can have a parent-child relationship

: Features are designed from the user's perspective. Users can select which features they want to install via the installer's SelectionTree Control .