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Encyclopedia > Windows Imaging Format
WIM image format
File extension: .wim
Developed by: Microsoft
Type of format: Disk image

The Windows Imaging Format (WIM) is a file-based disk image format. It was developed by Microsoft for use in its upcoming operating system releases. Windows Vista and Windows Fundamentals for Legacy PCs use it as part of their installation procedure. A filename extension is a suffix to the name of a computer file applied to show its format. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... A disk image is a computer file containing the complete contents and structure of a data storage medium or device, such as a CD. The term has been generalized to cover any such file, whether taken from an actual physical storage device or not. ... File has several meanings: Computer file File (tool) file (Unix), a program used to determine file types. ... A disk image is a computer file containing the complete contents and structure of a data storage medium or device, such as a CD. The term has been generalized to cover any such file, whether taken from an actual physical storage device or not. ... A file format is a particular way to encode information for storage in a computer file. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... An operating system (OS) is a set of computer programs that manage the hardware and software resources of a computer. ... Windows Vista is a line of graphical operating systems used on personal computers, including home and business desktops, notebook computers, Tablet PCs, and media centers. ... Windows Fundamentals for Legacy PCs (WinFLP) is an operating system from Microsoft, based on Windows XP, but optimized for older, less powerful hardware. ...


WIM files are created with a command-line tool named ImageX. It is officially available in several of Microsoft's deployment tools, such as in the Windows Automated Installation Kit (WAIK), Windows OEM Preinstallation Kit (OPK) or in Business Desktop Deployment 2007. A set of public APIs for manipulating WIMs have also been released with Vista, included under WIMGAPI.DLL ImageX is a command-line tool used to edit WIM image format files from within Windows. ...


Like other disk image formats, a WIM file contains a set of files and associated filesystem information. However, unlike sector-based formats (such as .ISO, .CUE/.BIN used for CD and DVD images), WIM is file-based, which means that the smallest unit of information is a file. The advantages of it being file-based include hardware independence, the ability to use heavy compression, and unique storage of a file referenced multiple times in the filesystem tree (single instance storage). It also allows packing multiple image files into only one file. A disk image is a computer file containing the complete contents and structure of a data storage medium or device, such as a CD. The term has been generalized to cover any such file, whether taken from an actual physical storage device or not. ... See Filing system for this term as it is used in libraries and offices In computing, a file system is a method for storing and organizing computer files and the data they contain to make it easy to find and access them. ... A sector is a part of a whole. ... An ISO image (.iso) is an informal term for a disk image of an ISO 9660 file system. ... When several files in a computer filesystem contain exactly the same data, single instance storage can replace the references to these identical files by references to a single stored copy of the file. ...


In Windows Vista, the installation DVD contains the main operating system contents in the format of a WIM image file.


See also

Windows Vista is a line of graphical operating systems used on personal computers, including home and business desktops, notebook computers, Tablet PCs, and media centers. ... ImageX is a command-line tool used to edit WIM image format files from within Windows. ...

References

  • ImageX and WIM Image Format at Microsoft TechNet
  • File Extension Details for .WIM at filext.com

 
 

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