Event submitted by Event Log Doctor
Event ID:
11718
Source:
MsiInstaller

Message:
Product: Microsoft Visual Studio 2005 Professional Edition - ENU -- Error 1718.File C:\WINDOWS\Installer\a4cb8.msp did not pass the digital signature check. For more information about a possible resolution for this problem, see http://go.microsoft.com/fwlink/?LinkId=73863.






Solution by Event Log Doctor

2008-05-27 19:41:01 UTC

I received this error when trying to install Visual Studio 2005 SP1 on a Windows Server 2003 machine.

It didn't matter whether I executed SP1 (which is over 400Mb in size) from a local or a network drive.

What ultimately fixed the problem was adding the following DWORD registry value:

PolicyScope = 1

to the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Contrary to the a blog post, I did neither have to reboot nor have to remove the server from the domain (thankfully).

Just adding that value and re-starting the SP1 iinstallation did the trick.



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