Microsoft KB Archive/940032

= Various issues may occur on a Windows Server 2003-based computer that is running the Volume Shadow Copy Service =

Article ID: 940032

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Datacenter x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems

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SYMPTOMS
On a Microsoft Windows Server 2003-based computer that is running the Volume Shadow Copy Service (VSS), you experience one of the following symptoms:   When you perform a backup operation by using the NTBackup tool, the following event is logged in the Application log:

Event Type: Error

Event Source: NTBackup

Event ID: 8019

Description: End Operation: Warnings or errors were encountered. Consult the backup report for more details.

Note If you view the backup log file, the following information is displayed:

Error returned while creating the volume shadow copy:0xffffffff

 If you access the properties of a volume and then click Shadow Copies, you receive one of the following error messages:

Error 0x8004230F: The shadow copy provider had an unexpected error while trying to process the specified operation.

Error 0x80004002: No such interface supported

  One of the following events is logged in the Application log: Event Type: Error

Event Source: VSS

Event ID: 20

Description: Volume Shadow Copy Service error: A critical component required by the Volume Shadow Copy Service is not registered. This might happened if an error occurred during Windows setup or during installation of a Shadow Copy provider. The error returned from CoCreateInstance on class with CLSID {faf53cc4-bd73-4e36-83f1-2b23f46e513e} and Name VSSEvent is [0x80040154]. Event Type: Error

Event Source: VSS

Event ID: 20

Description: Volume Shadow Copy Service error: A critical component required by the Volume Shadow Copy Service is not registered. This might happened if an error occurred during Windows setup or during installation of a Shadow Copy provider. The error returned from CoCreateInstance on class with CLSID {faf53cc4-bd73-4e36-83f1-2b23f46e513e} and Name VSSEvent is [0x80004002]. Event Type: Error

Event Source: VSS

Event ID: 8193

Description: Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance. hr = 0x80040154. Event Type: Error

Event Source: VSS

Event Category: None

Event ID: 8193

Description: Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance. hr = 0x80004002. Event Type: Error

Event Source: VSS

Event ID: 12302

Description: Volume Shadow Copy Service error: An internal inconsistency was detected in trying to contact shadow copy service writers. Please check to see that the Event Service and Volume Shadow Copy Service are operating properly. 



CAUSE
This issue occurs because the VSS system files are not registered.



RESOLUTION
To resolve this issue, follow these steps:  Click Start, click Run, type cmd, and then click OK. Type the following commands at a command prompt. Press ENTER after you type each command.   cd /d %windir%\system32 </li>  Net stop vss </li>  Net stop swprv </li>  regsvr32 ole32.dll </li>  regsvr32 oleaut32.dll </li>  regsvr32 vss_ps.dll </li>  vssvc /register </li>  regsvr32 /i swprv.dll </li>  regsvr32 /i eventcls.dll </li>  regsvr32 es.dll </li>  regsvr32 stdprov.dll </li>  regsvr32 vssui.dll </li>  regsvr32 msxml.dll </li>  regsvr32 msxml3.dll </li>  regsvr32 msxml4.dll </li></ul>

Note The last command may not run successfully.</li> Perform a backup operation to verify that the issue is resolved.</li></ol>

<div class="moreinformation_section">

Steps to reproduce this issue
<ol> <li>Type the following command at a command prompt. Press ENTER after you type the command.

regsvr32 /u swprv.dll

</li> <li>Try to perform a backup operation.</li></ol>

Keywords: kbtshoot kbprb kbexpertiseinter KB940032

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