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Volume Shadow Copy Service and DLLs

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Backing up the system state using NTBackup or Veritas Backup Exec may fail if you are having issues with the dll registrations for the Volume Shadow Copy service.

Running the vssadmin utility and using the “list writers” parameters returns nothing. The syntax "vssadmin list writers".

Usually this issue can be resolved by registering the dlls that are needed by the VSS service.

1. From command prompt:

Cd windows\system32

Net stop vss

Net stop swprv

regsvr32 ole32.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

2. After completing the registration of the DLL’s open an command prompt and type: vssadmin list writers

3. You should see the writers listed.

4. Open Ntbackup and attempt to backup file or systemstate.

 

 

Have a nice weekend.

 

Roderick White

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