Article ID: 324906
This article was previously published under Q324906
NoticeThis article applies to Windows 2000. Support for Windows 2000 ends on July 13, 2010. The Windows 2000 End-of-Support Solution Center
(http://support.microsoft.com/win2000)is a starting point for planning your migration strategy from Windows 2000. For more information see the Microsoft Support Lifecycle Policy
When you try to start a Microsoft Office program after you update your computer with Service Pack 3 (SP3) for Windows 2000, you may receive any of the following error messages:
The Windows Installer Service could not be accessed.
This can occur if you are running Windows in safe
mode, or if the Windows Installer is not correctly
installed. Contact your support personnel for assistance.
This application must be installed to run. Please run Setup from the location where you originally installed the application
This patch package could not be opened. Verify that the patch package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer patch package.
You may receive a prompt for the path to the Proplus.msi file. When you type the path, you continue to receive the same error message.
The system cannot open the device or file specified.
It may not be possible to start an Office program.
This behavior may occur for any of the following reasons:
Use the following methods in the order they are presented until the issue is resolved.
Method One: Change DCOM Impersonation Level to IdentifyChange the DCOM default impersonation level to Identify, remove the Msisip.dll file, and then reinstall SP3 for Windows 2000. To do this, follow these steps:
Method Two: Grant Full Control Permission to the SYSTEM Account
Method Three: Apply HotfixYou must install the hotfix Msiregmv.exe. This hotfix moves all the windows installer 1.x data registry keys to the Windows installer 2.x registry data location.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/319624/EN-US/ )PRB: Incorrect Default DCOM Settings Cause Windows Installer to Stop Responding