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Reset VSS Writers

 

VSS writers are application-specific components for Microsoft's Volume Shadow Copy Service, which ensure the consistency of application data when a shadow copy is created. That's quite useful for creating consistent backups of a system. However, some of these writers go into error states more or less frequently. And Microsoft did not deem it necessary to document how to reset writers without rebooting the entire system (or at least I didn't manage to find that piece of information).



Since this burnt me once too often, I started compiling a list of VSS writers and the services that need to be restarted to reset each of them. Some are rather obvious, others (System Writer for instance) not so much.
VSS WriterService NameService Display Name
ASR WriterVSSVolume Shadow Copy
BITS WriterBITSBackground Intelligent Transfer Service
COM+ REGDB WriterVSSVolume Shadow Copy
DFS Replication service writerDFSRDFS Replication
DHCP Jet WriterDHCPServerDHCP Server
FRS WriterNtFrsFile Replication
FSRM writersrmsvcFile Server Resource Manager
IIS Config WriterAppHostSvcApplication Host Helper Service
IIS Metabase WriterIISADMINIIS Admin Service
Microsoft Exchange WriterMSExchangeISMicrosoft Exchange Information Store
Microsoft Hyper-V VSS WritervmmsHyper-V Virtual Machine Management
NTDSNTDSActive Directory Domain Services
OSearch VSS WriterOSearchOffice SharePoint Server Search
OSearch14 VSS WriterOSearch14SharePoint Server Search 14
Registry WriterVSSVolume Shadow Copy
Shadow Copy Optimization WriterVSSVolume Shadow Copy
SPSearch VSS WriterSPSearchWindows SharePoint Services Search
SPSearch4 VSS WriterSPSearch4SharePoint Foundation Search V4
SqlServerWriterSQLWriterSQL Server VSS Writer
System WriterCryptSvcCryptographic Services
TermServLicensingTermServLicensingRemote Desktop Licensing
WMI WriterWinmgmtWindows Management Instrumentation
This list is far from complete. It merely contains those writers I already had to deal with and some contributions from fellow administrators.

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