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+# ruvector-core-win32-x64-msvc
+
+[![npm version](https://badge.fury.io/js/ruvector-core-win32-x64-msvc.svg)](https://www.npmjs.com/package/ruvector-core-win32-x64-msvc)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
+**Windows x64 MSVC native binding for ruvector-core**
+
+This package contains the native Node.js binding (`.node` file) for Windows x64 systems compiled with MSVC. It is automatically installed as an optional dependency when you install `ruvector-core` on a compatible system.
+
+🌐 **[Visit ruv.io](https://ruv.io)** for more AI infrastructure tools
+
+## Installation
+
+**You should not install this package directly.** Instead, install the main package:
+
+```bash
+npm install ruvector-core
+```
+
+The correct platform-specific package will be automatically installed based on your system.
+
+## System Requirements
+
+- **Operating System**: Windows 10 (1809+) or Windows 11, Windows Server 2019+
+- **Architecture**: x86_64 (64-bit)
+- **Node.js**: 18.0.0 or higher
+- **Visual C++ Runtime**: Automatically included with Node.js
+
+## Compatibility
+
+This package is compatible with:
+- **Windows 10** (version 1809 or later)
+- **Windows 11** (all versions)
+- **Windows Server 2019** and newer
+- Most Windows development environments
+
+**Note:** Windows ARM64 is not currently supported.
+
+## What's Inside
+
+This package contains:
+- **ruvector.node** - Native binary module compiled from Rust with MSVC
+- **index.js** - Module loader with error handling
+- Full HNSW indexing implementation
+- SIMD-optimized vector operations (AVX2, SSE4.2)
+- Multi-threaded async operations via Tokio
+
+## Performance
+
+When running on Windows x64 systems, you can expect:
+- **50,000+ vector inserts per second**
+- **10,000+ searches per second** (k=10)
+- **~50 bytes memory per 128-dim vector**
+- **Sub-millisecond latency** for most operations
+- Optimized for Intel/AMD AVX2 SIMD instructions
+
+## Building from Source
+
+If you need to rebuild the native module:
+
+### Prerequisites
+
+1. Install **Visual Studio 2022** (or 2019) with "Desktop development with C++" workload
+2. Install **Rust**: https://rustup.rs/
+3. Open "x64 Native Tools Command Prompt for VS 2022"
+
+### Build Steps
+
+```bash
+# Clone the repository
+git clone https://github.com/ruvnet/ruvector.git
+cd ruvector
+
+# Build for Windows x64
+cd npm\packages\core
+npm run build:napi -- --target x86_64-pc-windows-msvc
+```
+
+## Troubleshooting
+
+### Module Not Found Error
+
+If you see "Cannot find module 'ruvector-core-win32-x64-msvc'":
+
+1. Verify you're on Windows 64-bit: `wmic os get osarchitecture` should show "64-bit"
+2. Reinstall with optional dependencies: `npm install --include=optional ruvector-core`
+3. Check Node.js version: `node --version` should be 18.0.0 or higher
+
+### DLL Loading Issues
+
+If the module fails to load with DLL errors:
+
+1. **Install Visual C++ Redistributable**:
+   - Download from: https://aka.ms/vs/17/release/vc_redist.x64.exe
+   - Node.js usually includes this, but manual install may be needed
+
+2. **Check Windows Updates**:
+   - Ensure Windows is up to date
+   - Some MSVC runtimes come through Windows Update
+
+3. **Verify Node.js Installation**:
+   - Reinstall Node.js from nodejs.org
+   - Use the Windows Installer (.msi) version
+
+### Long Path Issues
+
+If you encounter "path too long" errors:
+
+1. **Enable Long Paths in Windows**:
+   ```powershell
+   # Run PowerShell as Administrator
+   New-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1 -PropertyType DWORD -Force
+   ```
+
+2. **Or use shorter paths**:
+   - Install Node modules closer to drive root (e.g., `C:\projects\`)
+
+### Antivirus False Positives
+
+Some antivirus software may flag native `.node` files:
+- Add an exception for `node_modules\ruvector-core-win32-x64-msvc\`
+- Or temporarily disable real-time scanning during npm install
+
+### WSL2 (Windows Subsystem for Linux)
+
+If you're using WSL2:
+- Use the Linux packages instead (`ruvector-core-linux-x64-gnu`)
+- This Windows package is for native Windows Node.js only
+
+## Related Packages
+
+- **[ruvector-core](https://www.npmjs.com/package/ruvector-core)** - Main package (install this)
+- **[ruvector-core-linux-x64-gnu](https://www.npmjs.com/package/ruvector-core-linux-x64-gnu)** - Linux x64
+- **[ruvector-core-linux-arm64-gnu](https://www.npmjs.com/package/ruvector-core-linux-arm64-gnu)** - Linux ARM64
+- **[ruvector-core-darwin-x64](https://www.npmjs.com/package/ruvector-core-darwin-x64)** - macOS Intel
+- **[ruvector-core-darwin-arm64](https://www.npmjs.com/package/ruvector-core-darwin-arm64)** - macOS Apple Silicon
+
+## Resources
+
+- 🏠 [Homepage](https://ruv.io)
+- 📦 [GitHub Repository](https://github.com/ruvnet/ruvector)
+- 📚 [Documentation](https://github.com/ruvnet/ruvector/tree/main/docs)
+- 🐛 [Issue Tracker](https://github.com/ruvnet/ruvector/issues)
+
+## License
+
+MIT License - see [LICENSE](https://github.com/ruvnet/ruvector/blob/main/LICENSE) for details.
+
+---
+
+Built with ❤️ by the [ruv.io](https://ruv.io) team