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Microsoft ASP.NET Core Runtime 8.0

Microsoft ASP.NET Core Runtime 8.0 provides the shared runtime components needed to run compatible ASP.NET Core web applications and services without installing the complete software development kit.

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✓ Software download·Open Source·Updated October 17, 2026
DeveloperMicrosoft Corporation
LicenseOpen Source
File size10 MB
Languageen-US
Downloads10

Run ASP.NET Core Web Applications

Microsoft ASP.NET Core Runtime 8.0 supplies the shared framework and execution components required by compatible ASP.NET Core web applications and services. After installation, framework-dependent applications can locate the expected runtime libraries, initialize their hosting environment, process requests, and use the ASP.NET Core components referenced when they were built. The package is intended for running completed applications rather than compiling source code or creating new projects. It commonly supports deployed websites, web APIs, background services, and server applications whose publishers chose framework-dependent deployment. Its practical value is providing a centrally maintained runtime that multiple compatible applications can use without each carrying the entire shared framework.

The runtime should match the major framework target expected by the application, while development tasks such as compiling code, restoring build tools, and creating projects require the corresponding SDK. Web applications hosted through IIS may also need Microsoft's hosting bundle because it adds the integration components used by that server. Microsoft Visual C++ v14 Redistributable (x64) serves native C and C++ application dependencies and does not replace ASP.NET Core shared framework files. Administrators should therefore follow the application's deployment guidance instead of treating these packages as interchangeable. Self-contained ASP.NET Core applications usually bring their own runtime components, whereas framework-dependent deployments rely on a compatible shared runtime installed on the host.

Benefits of Using Microsoft ASP.NET Core Runtime 8.0

Microsoft ASP.NET Core Runtime 8.0 gives framework-dependent web applications a consistent, centrally managed execution environment. The main benefit is efficient deployment: compatible websites and services can share installed framework libraries instead of packaging the same runtime components with every application. This can simplify servicing and reduce duplication across systems that host several ASP.NET Core workloads. The runtime includes the ASP.NET Core shared framework along with the underlying components needed to execute compatible applications, handle managed code, and support the established web application pipeline. It also keeps application execution separate from development tooling, so production hosts do not need the full SDK merely to run published software. When an application reports that its required framework is missing, installing the matching Microsoft ASP.NET Core Runtime 8.0 can restore the expected dependency without changing the application's source code or build configuration.

Microsoft ASP.NET Core Runtime 8.0 features

Key capabilities and highlights.

Feature 1

ASP.NET Core Shared Framework

Microsoft ASP.NET Core Runtime 8.0 installs the shared framework libraries used by compatible web applications and services. Framework-dependent deployments can resolve these centrally installed components at startup instead of including a private copy of every shared library.

Feature 2

Framework-Dependent App Execution

Runs published applications that were configured to use an installed ASP.NET Core shared framework. This deployment model keeps application-specific files separate from common runtime components and allows several compatible workloads to use the same maintained framework installation.

Feature 3

Web Application Hosting

Provides the managed runtime foundation used by compatible websites, web APIs, and server applications. It initializes the application and supports the ASP.NET Core request-processing pipeline established by the application's compiled code, configured services, middleware, and routing behavior.

Feature 4

Built-In Web Server Support

Includes the runtime support needed for compatible applications that use ASP.NET Core's built-in Kestrel web server. This allows published services to accept and process web traffic directly or operate behind a separately configured reverse proxy.

Feature 5

Central Runtime Servicing

Allows compatible applications to rely on a centrally installed shared framework. Administrators can service the runtime independently of application code, reducing duplicated framework files and simplifying maintenance when several hosted workloads use the same runtime family.

Feature 6

Side-by-Side Runtime Families

Supports keeping different major .NET runtime families available when separate applications require them. This helps administrators host workloads with distinct framework targets without assuming that one major runtime automatically satisfies every application's execution and shared-framework requirements.

Feature 7

Production-Focused Installation

Microsoft ASP.NET Core Runtime 8.0 supplies execution components without the compilers, project templates, and build commands provided by the full SDK. This makes it suitable for hosts that run published applications but do not perform software development tasks.

Feature 8

Runtime Dependency Resolution

Enables compatible applications to locate the shared framework they requested during publication. When the required runtime is absent, installation can resolve framework-not-found startup errors while leaving the application's source code, configuration, and deployment model unchanged.

Old versions

Browse historical releases and previous builds.

8.0.31September 8, 2026
8.0.30August 11, 2026
8.0.29July 14, 2026
8.0.28June 9, 2026
8.0.27May 12, 2026
8.0.26April 14, 2026

Frequently asked questions

Common questions about Microsoft ASP.NET Core Runtime 8.0.

What does Microsoft ASP.NET Core Runtime 8.0 do?

It installs the shared framework and execution components required to run compatible framework-dependent ASP.NET Core web applications, APIs, and services.

Is the ASP.NET Core Runtime the same as the .NET SDK?

No. The runtime executes published applications, while the SDK adds compilers, project templates, build commands, and other tools used to create and publish software.

Do IIS-hosted applications need anything else?

They may need the corresponding hosting bundle, which adds the ASP.NET Core Module and IIS integration components. Follow the application's hosting instructions to determine the required setup.

Do self-contained applications need Microsoft ASP.NET Core Runtime 8.0?

Usually not for their own execution because self-contained deployments include their selected runtime components. Framework-dependent applications instead rely on a compatible runtime installed on the host.

Why does an application report that ASP.NET Core is missing?

The application may be framework-dependent and unable to find the runtime family it targets. Installing the matching runtime or following the publisher's deployment guidance can supply the required shared framework.

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Software download

Download Microsoft ASP.NET Core Runtime 8.0

Microsoft ASP.NET Core Runtime 8.0 provides the shared runtime components needed to run compatible ASP.NET Core web applications and services without installing the complete software development kit.