When you try to install a large Microsoft Windows Installer (.msi) package or a large Microsoft Windows Installer patch (.msp) package on a computer that is running Microsoft Windows Server 2003 or Microsoft Windows XP, you receive the following error message:
Error 1718. File FileName was rejected by digital signature policy.
Additionally, the following event may be logged in the Application log:
Type: Error
Source: MsiInstaller
Category: None
Event ID: 1008
Date: Date
Time: Time
User: Na
Computer: ComputerName
Description: The installation of FileName is not permitted due to an error in software restriction policy processing. The object cannot be trusted.
This problem occurs if the Windows Installer process has insufficient contiguous virtual memory to verify that the .msi package or the .msp package is correctly signed.
A supported fix is available for Windows Server 2003. There is no fix available for Windows XP.