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You may not be able to use Windows Backup to restore the system state on a computer that is running Windows 2000 Server with SP3 or SP4
Article ID: 871169 - View products that this article applies to.
On a computer that is running Microsoft Windows 2000 Server with Service Pack 3 (SP3) or Microsoft Windows 2000 Server with Service Pack 4 (SP4), you may not be able to use Windows Backup to restore the system state.
The following events may be logged in the Application event log:
Event Type: Error
Event Source: NTBackup.exe
Description: Instruction at 0x775c827e referenced memory at 0x00000005. The memory could not be read.
Thread Name: RestoreRegDb
Exception code: c0000005
Exception description: Access violation
Exception address: 775c827e
Event Type: Information
This problem occurs because the Catsrvut.dll file and the Clbcatq.dll file do not match. This problem occurs because the Clbcatq.dll file is in use during the restore and cannot be replaced until after a reboot. As a result, the Catsrvut.dll file and the Clbcatq.dll file are not compatible when it comes time to restore the COM database.
To work around this behavior, use one of the following procedures:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For additional information about Windows 2000 system state back up and restore, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/240363/ )How to use the Backup program to back up and restore the system state in Windows 2000
Article ID: 871169 - Last Review: October 30, 2006 - Revision: 3.2