Offline Storage Table
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| Filename extension |
.ost |
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In computing, a Offline Storage Table (.ost, OST) is an open, proprietary file format used to store messages, calendar events, and other items within Microsoft software such as Microsoft Exchange Client, Windows Messaging, and Microsoft Outlook. The open format is controlled by Microsoft, who provides free specifications and free irrevocable technology licensing.
Microsoft Exchange Server users can either use their mailbox around the server in the net mode or the actual cached mode. Actual cached mode allows users to keep working with data in the mailbox as though they were looking at still-connected towards the server even when offline. MS Outlook produces an offline storage devices file, OST file then copies the content of the mailbox on the actual server into that file. Mobile users may then access this copy of the mailbox offline.
.OST files are a product of MS Outlook, and incorporate the user's offline e-mail files. .OST data are a formatting as used by Microsoft company Prospect[clarification needed] to save offline information on users' own workstations.
File extension
An OST data file (.OST) is usually an offline folder data file within Microsoft company Prospect. Off-line ringbinders[clarification needed] allow the user to figure offline and to synchronize improvements using the Trade[clarification needed] server next time the user links.
In forensics
The .ost file is one of the standard targets of inquiry in computer forensics, as a popular platform for offline email management.[1]
References
- ^ "Handbook of Digital Forensics and Investigation - Eoghan Casey - Google Books". Books.google.com. 2009-10-26. Retrieved 2012-09-18.
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