# castleproject/Windsor

Castle Windsor is a best of breed, mature Inversion of Control container available for .NET

Repository: https://github.com/castleproject/Windsor
Canonical: https://ross.abutalabs.com/products/windsor
Homepage: http://www.castleproject.org
Language: C#
License: Apache-2.0
License Family: permissive
Last push: 2024-07-11T13:06:28+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5428, "days_push": 783, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1535, forks 455 (observed 2026-08-28T04:04:59.755226+00:00)

## What it is
Castle Windsor is a mature Inversion of Control (IoC) container for .NET that manages dependency injection and object lifecycles. It is part of the Castle Project and supports .NET Framework 4.6.2 and .NET Standard / .NET 6.

## Use cases
- resolve dependencies via an IoC container in .NET
- manage service lifecycles in a C# application
- wire up dependency injection without Microsoft.Extensions.DependencyInjection
- register and configure components with conventions in .NET
- inject services into legacy .NET Framework apps

## When to choose
- you need a full-featured, battle-tested IoC container for .NET or .NET Framework
- you want rich component registration, interceptors, and lifecycle management
- you're maintaining an existing codebase already built on Windsor

## When to avoid
- you're starting a new ASP.NET Core app where Microsoft.Extensions.DependencyInjection is the default
- you need a minimal, lightweight DI container
- you want a container with frequent active development

## Facets
- artifact type: library
- maturity: maintenance
- function: middleware, developer-tools
- domain: backend, developer-tools, web-development
- platform: dotnet, cross-platform, windows
- tags: dependency-injection, ioc-container, service-container, dotnet, csharp

## Member repositories
- castleproject/Windsor (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:59.755226+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:08.378239+00:00, confidence not recorded.
  - readme: https://github.com/castleproject/Windsor (fetched 2026-08-28T04:04:59.755226+00:00, sha efc398e4781b)
  - homepage: http://www.castleproject.org (fetched 2026-08-29T11:33:00.403804+00:00, sha d0ef7e7e29e0)
  - site_page: http://www.castleproject.org/about (fetched 2026-08-29T11:33:00.413730+00:00, sha b4b6b25b06a4)
  - site_page: http://www.castleproject.org/about/history (fetched 2026-08-29T11:33:00.416610+00:00, sha 8ff7e9999e19)
  - site_page: http://www.castleproject.org/about/mission (fetched 2026-08-29T11:33:00.418934+00:00, sha 48c6d5310f22)
  - site_page: http://www.castleproject.org/about/team (fetched 2026-08-29T11:33:00.420841+00:00, sha 682cfe1eb13f)
- Data as of 2026-08-30T08:39:29.467469+00:00.