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Windows Installer fails silently after you upgrade to Windows Installer 3.1
Article ID: 898628 - View products that this article applies to.
When you are installing a Microsoft Windows Installer (.msi) package, the installation process will fail silently if the installer tries to install a later version of a system file that the Windows File Protection (WFP) feature helps protect. When you examine the Windows Installer log or the Application log you will see Windows Installer Error 1931.
Before the release of Microsoft Windows Installer version 3.1, a package that tried to install a later version of a WFP-protected file during a silent installation process could not install the file. However, the installation process would continue and would report as successful. With the release of Windows Installer 3.1, the behavior has changed. In version 3.1, the silent installation process does not succeed and then rolls back the installation if the silent installation process cannot install the WFP-protected file. WFP prevents applications from overwriting system files. Windows Installer cannot overwrite WFP-protected files.
To resolve this issue, use Method 1 if you are the end user of the installation package. Use Method 2 if you are creating the Windows Installer package.
Microsoft has confirmed that this is a problem in Microsoft Windows Installer 3.1.
For more information about WFP, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/222193/ )Description of the Windows File Protection feature
Article ID: 898628 - Last Review: September 22, 2011 - Revision: 5.0