# Windows WinSxS Manifest Analyzer

## Module
Scanner

## Status
VERIFIED

## Description
Parses Windows Side-by-Side (WinSxS) assembly manifests to discover shared system components, extracting assembly identity, version, processor architecture, and public key token.

## Implementation Details
- **WinSxS Package Analyzer**:
  - `src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.OS.Windows.WinSxS/WinSxSPackageAnalyzer.cs` - `WinSxSPackageAnalyzer` discovering WinSxS assemblies from the WinSxS directory
- **Manifest Parser**:
  - `src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.OS.Windows.WinSxS/WinSxSManifestParser.cs` - `WinSxSManifestParser` parsing WinSxS assembly manifest XML files to extract assembly identity, version, processor architecture, and public key token
- **Metadata Model**:
  - `src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.OS.Windows.WinSxS/WinSxSAssemblyMetadata.cs` - `WinSxSAssemblyMetadata` model for discovered assembly metadata
- **Plugin Registration**:
  - `src/Scanner/__Libraries/StellaOps.Scanner.Analyzers.OS.Windows.WinSxS/WinSxSAnalyzerPlugin.cs` - `WinSxSAnalyzerPlugin` registering the WinSxS analyzer in the scanner pipeline

## E2E Test Plan
- [ ] Scan a Windows container image and verify WinSxS assemblies are discovered from the WinSxS directory
- [ ] Verify each discovered assembly includes correct name, version, processor architecture (x86, amd64), and public key token
- [ ] Verify the manifest parser correctly handles multi-assembly manifests with dependency declarations
- [ ] Verify the analyzer produces valid SBOM components for WinSxS assemblies
- [ ] Verify the analyzer correctly handles different WinSxS directory layouts across Windows versions

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## Verification

| Check | Result |
|-------|--------|
| Tier 0 - Source files exist | PASS |
| Tier 1 - Build + code review | PASS |
| Tier 2 - Integration tests | PASS |
| Verified | 2026-02-13T18:10:00Z |