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Jhoncena1234 (talk | contribs) i installed windows flp and embedded 2009 they only a boot.wim the install files are still in i386 folder |
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| magic = {{mono|MSWIM\0\0\0}} / {{mono|WLPWM\0\0\0}} for wimlib [[Pipeline (Unix)|pipable]] variant<ref name="wimcapture">{{cite web|url=https://wimlib.net/man1/wimcapture.html|title=WIMCAPTURE|language=en|date=2018-11-24|access-date=2019-03-10}}</ref>
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The '''Windows Imaging Format''' ('''WIM''') is a [[Computer file|file]]-based [[disk image]] [[file format|format]]. It was developed by [[Microsoft]] to help deploy [[Windows Vista]] and subsequent versions of the [[Windows]] [[operating system]] family
== Design ==
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WIM supports three families of [[LZ77]]-based compression algorithms in ascending ratio and descending speed: XPRESS,<ref name=ms-xca>{{cite web | url=https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-xca/ | title=[MS-XCA]: Xpress Compression Algorithm | date=31 January 2023 }}</ref> [[LZX]], and LZMS.<ref name=wmilib-compression>[https://wimlib.net/compression.html wimlib: the open source Windows Imaging (WIM) library - Compression algorithm]</ref> The former two use [[Huffman encoding]], while the latter uses adaptive Huffman encoding with [[range coding]].<ref name=wimlib-compression-type>{{cite web |last1=Biggers |first1=Eric |title=wimlib_compression_type |url=https://wimlib.net/apidoc/group__G__general.html#gaf713fb36023a651f206a546e645ad09e |website=Wimlib documentation |access-date=2 October 2019}}</ref> There is also support for [[solid compression]]. Both solid compression and LZMS are introduced more recently, in WIMGAPI from Windows 8 and [[DISM]] from Windows 8.1.<ref>{{cite web |last1=Biggers |first1=Eric |title=WIMLIB_WRITE_FLAG_SOLID |url=https://wimlib.net/apidoc/group__G__writing__and__overwriting__wims.html#gab40a17c158783415c4c0dfa0de8b740c |website=Wimlib documentation}}</ref>
WIM uses [[SHA-1]] algorithm to calculate checksum for whole archive.<ref> {{Cite web |title=assorted/documentation/Windows Imaging (WIM) file format.asciidoc at main · libyal/assorted |url=https://github.com/libyal/assorted/blob/main/documentation/Windows%20Imaging%20(WIM)%20file%20format.asciidoc |access-date=2025-04-13 |website=GitHub |language=en}}</ref>
== Tools ==
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Deployment Image Service and Management Tool (DISM) is a tool introduced in Windows 7<ref name=DISM-WinITPro /> and Windows Server 2008 R2<ref name=DISM-WinITPro /> that can perform servicing tasks on a Windows installation image, be it an online image (i.e. the one the user is running) or an offline image within a folder or WIM file. Its features include mounting and unmounting images, querying installed device drivers in an offline image, and adding a device driver to an offline image.<ref name=DISM-WinITPro>{{cite web |url=http://windowsitpro.com/systems-management/q-whats-deployment-image-servicing-and-management-dism |title=Q. What's Deployment Image Servicing and Management (DISM)? |work=Windows IT Pro |publisher=[[Penton (company)|Penton]] |date=29 January 2010 |first=John |last=Savill}}</ref><ref>{{cite web|url=https://technet.microsoft.com/en-us/library/hh824821.aspx|title=Deployment Image Servicing and Management (DISM) Technical Reference|date=29 February 2012|access-date=6 Oct 2012|publisher=[[Microsoft]]}}</ref><ref>{{cite web |url=https://technet.microsoft.com/library/dd744566 |title=What Is Deployment Image Servicing and Management? |date=22 October 2009 |access-date=14 Dec 2012 |work=[[Microsoft TechNet]] |publisher=Microsoft}}</ref> It is now possible to repair with DISM any image using either a Windows Installation CD or [[Windows Update]].<ref>{{cite web|title=Repair a Windows Image - Technet - Microsoft|url=https://technet.microsoft.com/en-us/library/hh824869.aspx|website=[[Microsoft Technet]]|publisher=[[Microsoft]]|date=20 October 2013}}</ref>
Before Windows Server 2012 and Windows 8, DISM had incorporated the majority of ImageX functions but not all; ImageX was still needed for image capture and applying.<ref name=DISM-WinITPro /> However, DISM [[deprecated]] ImageX in Windows 8.<ref>{{cite web|title=What is DISM?|url=https://technet.microsoft.com/en-us/library/hh825236.aspx|website=[[Microsoft TechNet|TechNet]]|publisher=[[Microsoft]]|date=18 April 2014}}</ref>
Windows 8.1 added ability to apply and capture disk images, and Windows 10 extended image applying, by adding compression.
=== {{anchor|wimlib}} Support in other operating systems ===
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