No VSS writers are listed when you run the “vssadmin list writers” command in Windows Server 2008 R2

Article ID: 2009550 - View products that this article applies to.
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Symptoms

 

Symptoms

When you run the vssadmin list writers command in Windows Server 2008 R2, no VSS writers are listed. Additionally, the following events are logged in the Application log:

Log Name: Application
Source: VSS
Event ID: 22
Level: Error
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, Class not registered].

 

Log Name:     Application
Source:         VSS
Event ID:       8193
Level:            Error
Description:
Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance.  hr = 0x80040154, Class not registered.

If you open the Windows Server Backup snap-in, you receive the following error message:

A fatal error occurred during a Windows Server Backup snap-in (Wbadmin.msc) operation.
Error details:
Unknown error (0x80042302).
Close Wbadmin.msc and then restart it

 

Cause

 

This problem occurs because the registry path of the Eventcls.dll file is incorrect.

 

Resolution

 

To resolve this problem, follow these steps:

1. Click Start, type regedit in the Search programs and files box, and then press ENTER.

2. Locate and then click the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\EventSystem\{26c409cc-ae86-11d1-b616-00805fc79216}\EventClasses\{FAF53CC4-BD73-4E36-83F1-2B23F46E513E}-{00000000-0000-0000-0000-000000000000}-{00000000-0000-0000-0000-000000000000}

3. Double-click the TypeLib registry value.

4. In the Value Data box, type %systemroot%\system32\EVENTCLS.DLL, and then click OK.

5. Exit Registry Editor.

6. Click Start, type services.msc in the Search programs and files box, and then press ENTER.

7. Right-click the following services, one at a time. Click Restart for each service.

• COM+ Event System
• Volume Shadow Copy

8. Exit the Services snap-in.

9. Open an elevated command prompt, type vssadmin list writers, and then press ENTER. 

10. Verify that the VSS writers are now listed.

 

 

Properties

Article ID: 2009550 - Last Review: January 20, 2010 - Revision: 4.0
APPLIES TO
  • Microsoft SQL Server 2008 R2 Enterprise
  • Microsoft SQL Server 2008 R2 Standard
  • Microsoft SQL Server 2008 R2 Web
  • Windows HPC Server 2008 R2
  • Windows HPC Server 2008 R2 without Hyper-V
  • Microsoft Hyper-V Server 2008 R2
  • Windows Web Server 2008 R2
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
Keywords: 
KB2009550

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