Windows NT 3.x and 4.0 emulators

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Windows NT 4.0
Developer Microsoft
Initial release July 27, 1993
Final release Service Pack 6a with Post SP6a Security Rollup (4.0.1381.335) / July 26, 2001
Preceded by Windows 3.x (1991)
Succeeded by Windows 2000 (1999)
Emulated
For emulators that run on Windows NT 3.X and 4.0, see Emulators on legacy Microsoft products#Enterprise Windows NT.

placeholder text... original Xbox used a modified version of the Windows NT 3.5 kernel as their system software.[1] In May 2020, the full source code for the second release candidate build (build 782.1) of Windows NT 3.5, along with source code for the original Xbox, leaked onto the Internet.[2]

Unlike the almost nonexistent Windows XP emulation scene, using software from the NT 3.x and 4.0 has become significantly easier in recent years due to the development of advanced software emulators. As a result, using other solutions on modern operating systems is less recommended nowadays. Hypervisors dropped support for these including much older legacy OSes, with outdated guest tools or missing features like 3D acceleration. This means, it shouldn't be considered as viable solution at this point, see #Other solutions section for more information about that.

Emulators

Main article: PC Emulator Comparisons

These are emulators in the truest sense, in that they don't do any kind of "cheating/hacking" the way a hypervisor would. But keep in mind that, unlike hardware-assisted hypervisors; emulating something like Voodoo3 with Pentium II level of hardware with these software emulators requires latest and greatest top-notch single thread performance of CPUs. PCem, 86Box and UniPCemu are full retro x86 computer emulators, spanning from the original IBM 5150 to Pentium II powered PCs. Setting it up is much like building an actual retro computer, but in software, so expect it to be as difficult as setting up an actual retro PC. This means you're going to have to install Windows NT 3.X or 4.0 along with all necessary drivers for the hardware you chose. Having said that, see these emulators as a useful/best way to run these operating systems on modern systems especially if you want the most accurate and compatible option.

Other solutions

Compatibility layers

WoW is discontinued. Wine is the quintessential compatibility tool for POSIX-based operating systems like Linux and macOS that translates Windows API calls to Linux equivalents.

Hypervisors

Pretty much the same process mentioned in;

Main article: Windows NT 5.x emulators#Hypervisors
FPGA

placeholder text. MiSTer port of the ao486 core. See MiSTer page for more information.