Vss

(1)(source voltage) SeeVcc.

(2)(VolumeShadow CopyService,VolumeSnapshotService) A backup and restore function in Windows that makes copies of volumes (hard disks, etc.). VSS works stand-alone within the OS; for example, starting with Windows Server 2003, it is used to create incremental backups of a volume. In Windows Server 2008, adiskshadowutility was added to allow VSS operations to be scripted. Also available in Windows client versions starting with Windows XP, VSS can be activated by third-party backup software and backup appliances. Seesnapshot.