Image for Windows (disk imaging)
Encyclopedia
Image for Windows is a disk imaging backup
Backup
In information technology, a backup or the process of backing up is making copies of data which may be used to restore the original after a data loss event. The verb form is back up in two words, whereas the noun is backup....

 software program for Microsoft Windows
Microsoft Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

 developed by TeraByte Unlimited, and when first released in 2002, was one of two disk imaging software products that could create a consistent point-in-time backup of Windows while Windows was running.

The point-in-time technology used by Image for Windows consists of using a special driver
Device driver
In computing, a device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device....

, named PHYLock, that effectively redirects data being overwritten by Windows to a holding cache
Cache
In computer engineering, a cache is a component that transparently stores data so that future requests for that data can be served faster. The data that is stored within a cache might be values that have been computed earlier or duplicates of original values that are stored elsewhere...

. Since Microsoft's introduction of the Volume Shadow Copy Service
Volume Shadow Copy Service
Shadow Copy , is a technology included in Microsoft Windows that allows taking manual or automatic backup copies or snapshots of data, even if it has a lock, on a specific volume at a specific point in time over regular intervals...

, this technology concept is now generally available to any Windows based backup software.

Image for Windows, also known as, IFW, supports Windows NT 4.0
Windows NT 4.0
Windows NT 4.0 is a preemptive, graphical and business-oriented operating system designed to work with either uniprocessor or symmetric multi-processor computers. It was the next release of Microsoft's Windows NT line of operating systems and was released to manufacturing on 31 July 1996...

 through Windows Server 2008 and supports both x32 and x64 versions of Windows.
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