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  2. WoW64 - Wikipedia

    en.wikipedia.org/wiki/WoW64

    In computing on Microsoft platforms, WoW64 (Windows 32-bit on Windows 64-bit) is a subsystem of the Windows operating system capable of running 32-bit applications on 64-bit Windows. [1] It is included in all 64-bit versions of Windows, except in Windows Server Server Core where it is an optional component, and Windows Nano Server where it is ...

  3. Windows on Windows - Wikipedia

    en.wikipedia.org/wiki/Windows_on_Windows

    Many 16-bit Windows legacy programs can run without changes on newer 32-bit editions of Windows. The reason designers made this possible was to allow software developers time to remedy their software during the industry transition from Windows 3.1 to Windows 95 and later, without restricting the ability for the operating system to be upgraded to a current version before all programs used by a ...

  4. List of Microsoft Windows components - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    The bootloader; performs basic system initialization options such as loading the hardware abstraction layer and boot-time device drivers, prior to passing control to the Windows kernel. In versions prior to Vista, NTLDR and IA64ldr also display menus to the user if multiple operating systems are defined in boot.ini , or if F8 is pressed.

  5. Windows XP Professional x64 Edition - Wikipedia

    en.wikipedia.org/wiki/Windows_XP_Professional_x...

    A machine running Windows XP Professional x64 Edition cannot be directly upgraded to Windows Vista because the 64-bit Vista DVD mistakenly recognizes XP x64 as a 32-bit system. Windows XP x64 does qualify the customer to use an upgrade copy of Windows Vista or Windows 7, however it must be installed as a clean install.

  6. Driver Verifier - Wikipedia

    en.wikipedia.org/wiki/Driver_Verifier

    Driver Verifier is a tool included in Microsoft Windows that replaces the default operating system subroutines with ones that are specifically developed to catch device driver bugs. [1] Once enabled, it monitors and stresses drivers to detect illegal function calls or actions that may be causing system corruption.

  7. Windows Driver Model - Wikipedia

    en.wikipedia.org/wiki/Windows_Driver_Model

    In computing, the Windows Driver Model (WDM) – also known at one point as the Win32 Driver Model – is a framework for device drivers that was introduced with Windows 98 and Windows 2000 to replace VxD, which was used on older versions of Windows such as Windows 95 and Windows 3.1, as well as the Windows NT Driver Model.

  8. Installable File System - Wikipedia

    en.wikipedia.org/wiki/Installable_File_System

    IFSHLP.SYS (the Installable File System Helper) is an MS-DOS device driver that was first released as part of Microsoft Windows for Workgroups 3.11. It enables native 32-bit file access in Windows 386 Enhanced Mode by bypassing the 16-bit DOS API and ensuring that no other real mode driver intercepts INT 21h calls.

  9. Dr. Watson (debugger) - Wikipedia

    en.wikipedia.org/wiki/Dr._Watson_(debugger)

    Dr. Watson is an application debugger included with the Microsoft Windows operating system. It may be named drwatson.exe , drwtsn32.exe or dwwin.exe , depending on the version of Windows. Overview