Musa.Runtime 1451.28000.0

Requires NuGet 2.5 or higher.

dotnet add package Musa.Runtime --version 1451.28000.0
                    


                    

                
NuGet\Install-Package Musa.Runtime -Version 1451.28000.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Musa.Runtime" Version="1451.28000.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Musa.Runtime" Version="1451.28000.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Musa.Runtime" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Musa.Runtime --version 1451.28000.0
                    


                    

                
#r "nuget: Musa.Runtime, 1451.28000.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Musa.Runtime@1451.28000.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Musa.Runtime&version=1451.28000.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Musa.Runtime&version=1451.28000.0
                    


                            Install as a Cake Tool

Musa.Runtime - Universal C++ RunTime Library

Actions Status Downloads LICENSE Visual Studio Windows Platform

Overview

Musa.Runtime is a Microsoft MSVC runtime library adapted for Windows kernel-mode development. Built on Musa.Core, it carries forward the architecture pioneered by ucxxrt.

Core goal: Give kernel developers the same C++ experience that application developers enjoy.

Design highlight: Inspired by Docker's layered filesystem, Musa.Runtime uses an overlay mechanism to selectively replace files on top of the original MSVC SDK source — no fork, no independent copy to maintain. See Architecture for details.

Quick Start

1. Install

NuGet (recommended):

<ItemGroup>
  <PackageReference Include="Musa.Runtime">
    <Version>1451.28000.0</Version>
  </PackageReference>
</ItemGroup>

Or right-click your project → Manage NuGet Packages → search Musa.Runtime → Install.

Manual import: Download from Releases and unzip:

<PropertyGroup>
  <MusaRuntimeOnlyHeader>false</MusaRuntimeOnlyHeader>
</PropertyGroup>
<Import Project="..\Musa.Runtime\config\Musa.Runtime.Config.props" />
<Import Project="..\Musa.Runtime\config\Musa.Runtime.Config.targets" />

2. Rename DriverEntry → DriverMain

Musa.Runtime provides its own DriverEntry (which handles CRT initialization). Your driver entry point must be renamed to DriverMain:

EXTERN_C NTSTATUS DriverMain(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
{
    DriverObject->DriverUnload = [](auto obj) { MusaLOG("Unload."); };
    // Your code here
    return STATUS_SUCCESS;
}

3. Use C++ in Kernel

#include <vector>
#include <string>
#include "kext/kallocator.h"

void Example()
{
    std::vector<std::string, kallocator<std::string>> vec;
    vec.push_back("hello from kernel");
}

⚠️ kallocator defaults to PagedPool. When used at DISPATCH_LEVEL or above, specify NonPagedPool explicitly.

Features

Feature Status Notes
x64 ✅ Primary platform
ARM64 ⚠️ Experimental
New / Delete ✅ Backed by ExAllocatePoolWithTag
C++ Exception (/EHa, /EHsc) ✅ IRQL ≤ APC_LEVEL
Static Object Construction ✅ Runs at driver load time
SAFESEH / GS ✅ Buffer security check
SEH (__try/__except) ✅ Access violation, finally, continue search
STL Containers / Algorithms ✅ Full OneCore / CoreCRT support
std::format / std::print ✅ C++23 formatted output
std::regex ✅ Full regular expression support
std::filesystem ✅ C++17 filesystem (Phase 1)
String Conversions (std::stoi/stod/etc.) ✅ stoi, stol, stoul, stoll, stoull, stod, stof
thread_local ❌ Compiler-level limitation (fs/gs register access)

Documentation

Document Content
📐 Architecture Design philosophy (overlay pattern), component architecture, kernel-mode adaptations
📝 Developer Guide Installation, STL usage, exception handling, kallocator, troubleshooting
🔧 Build System Project structure, build process, version management, publish pipeline
🔬 Overlay Diff Report Per-file differential analysis of all overlay files

Build from Source

> git clone --recurse-submodules https://github.com/MiroKaku/Musa.Runtime.git
> cd Musa.Runtime
> .\BuildAllTargets.cmd

Prerequisites: Visual Studio 2026 (latest) + WDK

References

Product Compatible and additional computed target framework versions.
native native is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1451.28000.0 8 6/6/2026
0.6.0 146 5/1/2026
0.5.1 736 8/26/2025

v1451.28000.0

**SDK:** MSVC 14.51.36231 / UCRT 10.0.28000.0

- **C++17 filesystem** — Phase 1 filesystem support for kernel mode
- **std::format** — Comprehensive format string support (align, fill, hex, oct, bin, float, sign, escape, multi-arg, positional arguments)
- **std::print** — Formatted output
- **std::regex** — Full regular expression support
- **String-to-number conversions** — std::stoi, stol, stoul, stoll, stoull, stod, stof
- **Complete locale chain** — Enables std::format, std::regex, and locale-dependent functions
- **Kernel-mode locale overlay** — Full locale coverage without console I/O dependencies
- **22 string/memory UCRT functions** — strerror/strerror_s, collation, and more
- **112 UCRT source files unlocked** — lowio, stdio, filesystem, time, env directories
- **lowio overlay** — Removes console API dependencies in kernel mode
- **SEH support** — __GSHandlerCheck_SEH_noexcept, access violation handling, finally/continue search
- **_strnicoll / _wcsnicoll** — Locale-aware string collation