The following file is available for download from the Microsoft Download Center: Asset 4009805Download Windows Installer 4.5 now. Note Check the following table to find which file to choose for your operating system：. Operating System. Files to choose from the Microsoft Download Center.
File size: 359 KB. Downloads: 214,826. User rating: 86 votes. Rate this 5 (Best) 4 3 2 1 (Worst) Microsoft has updated the Windows Installer CleanUp Utility. With the Windows Installer CleanUp.
Before you install Windows 10, it’s a good idea to save any work and back up your PC before you start. If you used the media creation tool to download an ISO file for Windows 10, you’ll need to burn it to a DVD before following these steps. Attach the USB flash drive or insert the DVD on the PC where you want to install Windows 10.

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Get Windows 7 and enjoy the new capabilities in Windows Installer 5. Note that windows 7 free download is available for students of schools enrolled in MSDN AA (Microsoft Developer Network Academic Alliance) program and free Windows 7 upgrade is available for buyers of windows vista.

Windows Installer 4.5 and earlier is available as a redistributable software update package. See the section Released Versions of Windows Installer to determine which products shipped versions of the Windows Installer. The redistributable update package for a version is made available after the release of the product that ships with a specific Windows Installer version.

Note

There is no redistributable for Windows Installer 5.0. This version is included with the OS in Windows 7, Windows Server 2008 R2, and later client and server releases (including Windows 10).

Obtaining the Windows Installer Redistributable (4.5 and earlier)

You can find all the available Windows Installer redistributables at the Microsoft Download Center.
The download for the Windows Installer 4.5 redistributable package is available at: https://go.microsoft.com/fwlink/p/?LinkID=101159.
The name of the redistributable that installs Windows Installer 4.5 on x86-based computers running Windows Vista, Windows Vista with Service Pack 1 (SP1), and Windows Server 2008 is Windows6.0-KB942288-v2-x86.MSU.
The name of the redistributable that installs Windows Installer 4.5 on x64-based computers running Windows Vista, Windows Vista with SP1, and Windows Server 2008 is Windows6.0-KB942288-v2-x64.MSU.
The name of the redistributable that installs Windows Installer 4.5 on Itanium-Based Systems computers running Windows Vista, Windows Vista with SP1, and Windows Server 2008 is Windows6.0-KB942288-v2-ia64.MSU.
The name of the redistributable that installs Windows Installer 4.5 on x86-based computers running Windows XP with Service Pack 2 (SP2) and Windows XP with Service Pack 3 (SP3) is WindowsXP-KB942288-v3-x86.exe.
The name of the redistributable that installs Windows Installer 4.5 on x86-based computers running Windows Server 2003 with Service Pack 1 (SP1) and Windows Server 2003 with Service Pack 2 (SP2) is WindowsServer2003-KB942288-v4-x86.exe.
The name of the redistributable that installs Windows Installer 4.5 on x64-based computers running Windows Server 2003 with SP1 and Windows Server 2003 with SP2 is WindowsServer2003-KB942288-v4-x64.exe.
The name of the redistributable that installs Windows Installer 4.5 on Itanium-Based Systems computers running Windows Server 2003 with SP1 and Windows Server 2003 with SP2 is WindowsServer2003-KB942288-v4-ia64.exe.
There is no redistributable that installs Windows Installer 4.0. This version of the Windows Installer ships with Windows Vista.
The name of the redistributable that installs Windows Installer 3.1 is WindowsInstaller-KB893803-v2-x86.exe. The download for the Windows Installer 3.1 Redistributable (v2) package is available at: https://www.microsoft.com/downloads/details.aspx?FamilyID=889482fc-5f56-4a38-b838-de776fd4138c.
Note
If you upgraded to Windows Installer 3.1 by installing Windows Server 2003 with SP1, or an earlier version of this redistributable, you may also need to install the Update for Windows Server 2003 Service Pack 1 (KB898715) to obtain all the updates available in Windows Installer 3.1 Redistributable (v2).
The redistributable that installs Windows Installer 3.0 is WindowsInstaller-KB884016-v2-x86.exe. The download for the Windows Installer 3.0 Redistributable is available at: https://www.microsoft.com/downloads/details.aspx?FamilyID=5fbc5470-b259-4733-a914-a956122e08e8.
The Windows Installer 2.0 used a previous naming convention for the redistributable: Instmsi.exe. The redistributable for installing or upgrading to Windows Installer 2.0 on Windows 2000 should not be used to install or upgrade Windows Installer 2.0 on Windows Server 2003 and Windows XP.
The download for the Windows Installer 2.0 Redistributable for Windows NT 4.0 and Windows 2000 is available at https://www.microsoft.com/downloads/details.aspx?FamilyID=4b6140f9-2d36-4977-8fa1-6f8a0f5dca8f.

Installing the Windows Installer Redistributable (4.5 and earlier)

The Windows Installer 4.5 resdistributable is provided for Windows Vista and Windows Server 2008 operating systems as a .msu file and should be installed using the Windows Update Stand-alone Installer (Wusa.exe.)

The Windows Installer 4.5 redistributable for Windows XP and Windows Server 2003 operating systems can be installed using the following command line syntax and options.

The Windows Installer 3.1 and Windows Installer 3.0 redistributables can be installed using the following command line syntax and options.

Syntax

Use the following syntax to install the redistributables for Windows Installer 4.5 on Windows XP and Windows Server 2003.

Command-Line Options

The Windows Installer redistributable software update packages use the following case-insensitive command-line options.

Option	Description
/norestart	Prevents the redistributable package from asking the user to reboot even if it had to replace files that were in use during the installation. If the update package is invoked with this option, it returns ERROR_SUCCESS_REBOOT_REQUIRED if it had to replace files that were in use. If it did not have to replace files that were in use, it returns ERROR_SUCCESS. See the remarks section for additional information on delayed reboots.
/quiet	For use by applications that redistribute the Windows Installer as part of a bootstrapping application. A user interface (UI) is not presented to the user. The bootstrapping application should check the return code to determine whether a reboot is needed to complete the installation of the Windows Installer.
/help	Displays help on all the available options.

Delayed Restart on Windows Vista and Windows Server 2008

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The /norestart command-line option prevents wusa.exe from restarting the computer. However, if a file being updated by the MSU package is in use, then the package is not applied to the computer until the user restarts the computer. This means that applications that use the Windows Installer 4.5 redistributable for Windows Vista and Windows Server 2008 cannot use the Windows Installer 4.5 functionality until the computer is restarted.

Delayed Restart on Windows XP and Windows Server 2003

It is recommended that the Windows Installer service be stopped when using the update package. When the package is run in full UI mode it detects if the Windows Installer service is running and requests the user to stop the service. If the user continues without stopping the service, the update replaces Windows Installer.

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Bootstrapping applications that