VSS errors on Windows 2003

SUMMARY

Resolve VSS backup errors with our windows agent

ISSUE

Windows 2003

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.

For more detailed information on backup failures and performance issues see Unitrends KB 5062 - Backup Failures and Performance Issues

RESOLUTION

  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
Net stop vss
Net stop swprv
regsvr32 ole32.dll
regsvr32 oleaut32.dll
regsvr32 vss_ps.dll
vssvc /register
regsvr32 /i swprv.dll
regsvr32 /i eventcls.dll
regsvr32 es.dll
regsvr32 stdprov.dll
regsvr32 vssui.dll
regsvr32 msxml.dll
regsvr32 msxml3.dll
regsvr32 msxml4.dll


Note The last command may not run successfully.

  Perform a backup operation to verify that the issue is resolved.

Third-Party Sources

http://support.microsoft.com/kb/940032

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