Microsoft has released a new version of Windows Installer. It is responsible for managing application installation and configuration.

There are many changes implemented in this new version. However, most of them are targeted for software developers or IT management. All users will need to install it to take advantage of the new features.

This versions does not configure the Windows Installer service to run in safe mode. I don’t know why Microsoft does this as it is needed to uninstall programs that use Windows Installer in safe mode. You can enable it in safe mode using VistaTweaker.

You can install it over any version you have because it will update it to 4.5 automatically. Just be sure to download the correct version for your Windows installation.

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