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32-bit file access

32-bit file access refers to the higher performance, protected mode disk caching method introduced in Windows for Workgroups 3.11, which replaced SmartDrive (Smartdrv). It bypassed MS-DOS and directly accessed the disk, either via the BIOS or (preferably) 32-bit disk access (Windows-native protected mode disk drivers). This feature was a backport from the then-unreleased Windows 95, as suggested by Microsoft's advertisements for Windows for Workgroups 3.11 ("the 32-bit file system from our Chicago project").

With the introduction of 32-bit file access and Long File Names in Windows 95, DOS was reduced to the role of a boot loader for Windows.[citation needed] However, it was still possible to boot Windows 95 into a pure real-mode DOS system mode.

It was implemented using the VFAT, VCACHE, and IFSMgr VxD drivers.

Also, it should not be confused with 32-bit disk access. Although both technologies are similar, 32-bit disk access (also known as FastDisk) pre-dates Windows for Workgroups 3.11. 32-bit file access provided a 32-bit code path for Windows to directly access the disk bus by intercepting the MS-DOS Int 21H services while remaining in 386 protected mode, rather than handling the Int 21H services in real mode by MS-DOS. 32-bit disk access offers relatively less performance and is less likely to work on many computers than 32-bit file access. 32-bit file access does not need 32-bit disk access.

See also edit

External links edit

  • 32-bit file access FAQs


file, access, this, article, includes, list, references, related, reading, external, links, sources, remain, unclear, because, lacks, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, march, 2010, learn, when, remo. This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help to improve this article by introducing more precise citations March 2010 Learn how and when to remove this template message 32 bit file access refers to the higher performance protected mode disk caching method introduced in Windows for Workgroups 3 11 which replaced SmartDrive Smartdrv It bypassed MS DOS and directly accessed the disk either via the BIOS or preferably 32 bit disk access Windows native protected mode disk drivers This feature was a backport from the then unreleased Windows 95 as suggested by Microsoft s advertisements for Windows for Workgroups 3 11 the 32 bit file system from our Chicago project With the introduction of 32 bit file access and Long File Names in Windows 95 DOS was reduced to the role of a boot loader for Windows citation needed However it was still possible to boot Windows 95 into a pure real mode DOS system mode It was implemented using the VFAT VCACHE and IFSMgr VxD drivers Also it should not be confused with 32 bit disk access Although both technologies are similar 32 bit disk access also known as FastDisk pre dates Windows for Workgroups 3 11 32 bit file access provided a 32 bit code path for Windows to directly access the disk bus by intercepting the MS DOS Int 21H services while remaining in 386 protected mode rather than handling the Int 21H services in real mode by MS DOS 32 bit disk access offers relatively less performance and is less likely to work on many computers than 32 bit file access 32 bit file access does not need 32 bit disk access See also edit32 bit disk access IFSHLP SYSExternal links editMS Windows 32 Bit File Access Meta FAQ 32 bit file access FAQs https web archive org web 20070324064925 http pclt cis yale edu pclt OPSYS WFWG311 HTM nbsp This Microsoft Windows article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title 32 bit file access amp oldid 1064334481, wikipedia, wiki, book, books, library,

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