DOSVisor

7.0easy start · #8of 26
in MS-DOS Emulators

Free to practise onyes
Well documentedyes
Runs where you workno

Runs on Windows.

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DOSVisor is ranked #8 of 26 in MS-DOS emulators on The Geeks Club. It runs on Windows. There is a free plan.

DOSVisor plans and pricing

All plans

Free Free No pricing or usage limits stated; the repository is public github.com · 9 Oct 2026

Compared on MS-DOS emulators

Free plan: Yes
Supported host platforms: Windows
DOS target versions: ms-dos
Source available: Yes

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DosKit Lesson 17.4 DOS Browser Lesson 27.3 Magic DosBox Lesson 37.2 DOS Wasm X Lesson 47.1 DOSBox Lesson 57.1 js-dos Lesson 67.1

The record

Purpose: DOSVisor is a DOS emulator that uses the Windows Hypervisor Platform API to run DOS programs in a virtualized 16-bit real-mode environment on modern Windows systems.
Intended use: The project primarily demonstrates the Windows Hypervisor Platform API and is not intended to be a complete DOS emulator.
CPU: It uses hardware virtualization for the CPU and emulates the DOS layer in software.
Interrupts: It uses a custom Interrupt Vector Table with CPUID instructions to trigger VM exits and intercept DOS interrupts.
I/O support: It captures I/O requests for software emulation, but supports only a very small set of common I/O requests.
Timers: Supported timing mechanisms include the BIOS counter, RAM refresh toggle bit, system clock and RTC registers; the 8253 PIT timer is not fully implemented.
Keyboard: It monitors keyboard state, maintains a simple key buffer and passes information to DOS programs through keyboard interrupts.
Terminal: Basic terminal commands are supported for running simple text-based games and other basic programs.
System fields: BIOS data areas and the Program Segment Prefix are allocated but not populated, except for the BIOS counter value.
Testing: The maker reports testing DOSVisor with FlareSay.exe, a DOS game from FlareOn 2023 challenge 6.
Distribution: The public repository contains bin and src directories; its page lists no releases or packages.
Maker: The repository is published under the GitHub account x86matthew.
Demonstration project: The author describes DOSVisor primarily as a demonstration of the Windows Hypervisor Platform API, not a complete DOS emulator.
CPU virtualization: It uses hardware virtualization for the CPU and emulates the DOS layer in software.
Price from: Free

Where it ranks on The Geeks Club

Best MS-DOS Emulators in 2026#8 of 26

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Sources

github.com/x86matthew/DOSVisor· checked 9 Oct 2026