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Windows Server 2003 Compatibility with Former Backup Software

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article was previously published under Q327948
Windows Server 2003 contains a new backup infrastructure, including new Application Programming Interfaces (APIs) for backup. Windows Server 2003 also supports the backup APIs of Windows 2000. Because of the new APIs in Windows Server 2003, backup programs can use the new Volume Shadow Copy service (VSS). This service provides new backup functionality, including the following features:
  • It backs up files that are open for exclusive access.
  • It provides backups of volumes that reflect the state of those volumes at the instant the backup is started, even if the data changes while the backup is in progress. This feature makes sure that all the data in the backup is internally consistent and reflects the state of the volumes at a single point in time.
  • It notifies programs and services that a backup is about to occur, which allows them to prepare for the backup by cleaning up on-disk structures and by flushing caches and log files.
Because Windows Server 2003 still supports backup APIs from Windows 2000, backup programs that are designed for Windows 2000 continue to function as they did under previous versions of Windows. However, they may not gain the benefits of the Volume Shadow Copy service.

Article ID: 327948 - Last Review: 12/03/2007 04:30:02 - Revision: 7.4

  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Small Business Server 2003 Premium Edition
  • Microsoft Windows Small Business Server 2003 Standard Edition
  • kbinfo KB327948