what is windows installer

As one of the components of [Win2K/WinXP/WinVista], windows installer is a tool specially used to manage and configure software services. It is provided as an additional product under Win95, Win98, and WinMe, allowing users to effectively Install and configure software products and applications.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

Microsoft Windows Installer, as one of the components of Win2K/WinXP/WinVista, is a tool specially used to manage and configure software services. It is provided as an additional product under Win95, Win98, WinMe and WinNT4.0, allowing users to effectively install and configure software products and applications. The new Installer provides new features for software products, such as using the command line to install products and increasing user customizability.

Version Windows Installer 4.5 has several new features, including:

• Multi-package transactions: In multi-package transactions, you can create a single transaction from multiple packages . In a multi-package transaction, the linker is used to dynamically include the packages in the transaction. If no packages are installed as expected, you can rollback the installation.

• Embedded User Interface Handler: You can embed a custom user interface (UI) handler in a Windows installation package. This makes custom user interfaces easier to integrate. You can also call an embedded user interface handler in the Add or Remove Programs control panel item. Alternatively, you can call an embedded user interface handler in a Windows Installer repair process.

• Embedded inference chaining: You can use the embedded linker to add packages to multiple package transactions. You can use an embedded linker to facilitate the installation of multiple packages. For example, you can enable install on-demand events, repair events, and uninstall events on multiple packages.

• Update Alternate Flexibility: This feature enables you to correctly replace changes in the FeatureComponent table.

• Shared component on-install patch resiliency: This feature ensures that the latest version of a component is available across all products.

• Custom Update Uninstall Action Execution: This feature allows adding or updating a change to a custom action so that the uninstalled update is called when the custom action is performed.

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