The Microsoft Volume Shadow Service (VSS) is Microsoft technology that forms part of Windows XP, Vista and 7 that allows applications to access a "point in time" snapshot of a logical drive, also enabling files that are in use or locked to be accessed. Oops!Backup makes use of MS VSS to backup files that are in use by other applications such as Microsoft Outlook PST files. When backing up PST files, VSS should be enabled. If VSS is not enabled then Oops!Backup will find the files locked and will fail to back them up. Since MS VSS takes up system resources it will slow down the backup process to some extent. Due to this we suggest to only use MS VSS when you know that one or more of the files you want to back will be in use. If you want to back up files that are always in use then we suggest you create a Special Folder and enable the MS VSS just for that special folder. For more info on Special Folders, click here. For instructions on how to create Special Folders, follow the instructions here. |