# microsoft/win32-app-isolation

Tools and documentation for Win32 app isolation

Repository: https://github.com/microsoft/win32-app-isolation
Canonical: https://ross.abutalabs.com/products/win32-app-isolation
License: MIT
License Family: permissive
Last push: 2025-04-18T18:27:06+00:00

## Health v2 (maintenance only)
Score: 29/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 17, release rhythm 8, longevity 92
- inputs: {"age_days": 1301, "days_push": 502, "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 1315, forks 38 (observed 2026-08-28T04:04:20.562894+00:00)

## What it is
Microsoft's repository of tools and documentation for Win32 app isolation, a Windows security feature that contains damage from compromised applications using AppContainers and resource virtualization. The repo primarily serves as a hub for filing bugs, feature requests, and questions about the technology.

## Use cases
- isolate win32 desktop apps to limit blast radius of compromise
- sandbox legacy windows applications for privacy protection
- enable appcontainer-based isolation for my windows app
- learn how win32 app isolation works
- file bugs or ask questions about win32 app isolation

## When to choose
- you develop Windows desktop apps and want to isolate them with AppContainer-based sandboxing
- you need official documentation and support channels for Win32 app isolation
- you want to report issues or request features for the isolation platform

## When to avoid
- you need application sandboxing on Linux or macOS
- you want a general-purpose container or VM solution rather than Windows-native app isolation
- you need a ready-to-use end-user product rather than tools and documentation

## Facets
- artifact type: application
- maturity: active
- function: security, developer-tools, documentation
- domain: security, windows, developer-tools
- platform: windows
- tags: appcontainer, sandboxing, win32, microsoft, isolation, privacy

## Member repositories
- microsoft/win32-app-isolation (main) score 29

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:20.562894+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 2026-08-30T04:48:42.018310+00:00, confidence not recorded.
  - readme: https://github.com/microsoft/win32-app-isolation (fetched 2026-08-28T04:04:20.562894+00:00, sha 84503349b31f)
- Data as of 2026-08-30T08:39:29.467469+00:00.