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FIX: Error message when you use a Volume Shadow Copy Service (VSS) writer to back up a snapshot in SQL Server 2005 or in SQL Server 2000: ‘Attempt to release mutex not owned by caller’

When you use a Volume Shadow Copy Service (VSS) writer to back up a snapshot in Microsoft SQL Server 2005 or in SQL Server 2000, an event that resembles the following may be logged in the Application log: Event Source: SQLVDI Event Category: None Event ID: 1 Date: Time: