RosBE

by Ahmed Arifv20260829

Last updated Aug 31, 2026

RosBE bootstrapper and toolchain manager for ReactOS

Install with winget

$ winget install --id ReactOS.RosBE --exact --version 20260829

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

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About

A lightweight, winget-installable Rust bootstrapper for RosBE.

`winget install` adds the `rosbe` command. Run `rosbe install` to

download and verify the RosBE toolchain bundle, then `rosbe enable`

to add the active toolchain directories to PATH.

Managed in this version:

- LLVM-MinGW (Clang) 21.1.7 - llvm-mingw 20251202 (UCRT)

- MinGW-GCC 15.2.0 - crosstool-NG Canadian-cross (UCRT)

- CMake 3.31.6

- Ninja 1.12.1

- WinFlexBison (Flex+Bison) 2.5.25 - Flex 2.6.4 + Bison 3.8.2

- QEMU (Windows bundle) 11.0.0 - qemu.weilnetz.de build 20260422

`rosbe update` refreshes the toolchain bundle. `rosbe remove` removes

the installed bundle and PATH entries.

Not an official ReactOS release. Intended for preview / early adoption.

Installers · v20260829

Architecture	Type	Scope	Install	Download
x64	ZIP archive	-		Direct

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

No known CVEs for RosBE.

Coverage is best-effort and depends on a winget package mapping to an NVD CPE entry. Absence here is not a guarantee of safety.

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More from Ahmed Arif or browse reactos, bootstrapper, build-environment.

Frequently asked questions

How do I install RosBE on Windows?

Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id ReactOS.RosBE --exact --version 20260829. winget downloads the installer from Ahmed Arif and runs it. Requires Windows 10 (1809+) or Windows 11.

How do I install RosBE silently for unattended deployment?

Add --silent and accept the agreements upfront: winget install --id ReactOS.RosBE --exact 20260829 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.

How do I uninstall RosBE via winget?

Run: winget uninstall --id ReactOS.RosBE --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from RosBE's Apps & Features entry.

Is RosBE free?

RosBE is distributed under MIT. Refer to the publisher (https://github.com/ahmedarif193/winget-rosbe) for the full license terms - Wingetly itself does not charge for installation.

Does RosBE work on Windows 10?

Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls RosBE directly from the publisher.

How do I keep RosBE up to date?

Run winget upgrade --id ReactOS.RosBE --exact, or winget upgrade --all to update everything winget tracks. We index 4 versions of RosBE from microsoft/winget-pkgs.

Recent versions

20260829latest
20260629
20260424
1.0.0