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‎README.md‎

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# ConfuserExx
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[![CI][img_ci]][ci]
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[![Tests][img_test]][test]
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[![CodeQL][img_codeql]][codeql]
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[![MIT License][img_license]][license]
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An actively maintained fork of [ConfuserEx][upstream] — an open-source protector for .NET applications.
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> The original [mkaring/ConfuserEx][upstream] has been dormant since 2022. This fork includes bug fixes, new features, and modern .NET support.
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## Features
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* Supports .NET Framework 2.0/3.5/4.x, .NET Standard 2.0, .NET Core, .NET 5+/6/7/8+
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* Symbol renaming (Support WPF/BAML)
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* Protection against debuggers/profilers
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* Protection against memory dumping
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* Protection against tampering (method encryption)
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* Control flow obfuscation
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* Constant/resources encryption
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* Reference hiding proxies
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* Disable decompilers
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* Embedding dependency
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* Compressing output
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* Extensible plugin API
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* Roslyn code analysis integration
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* Auto-detection of .NET runtime paths for modern framework support
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## What's improved over upstream
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* Fixed WPF resource renaming, .NET Standard obfuscation, control flow protection
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* Serialization-aware renaming (DataContract, DataMember, JsonProperty)
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* Graceful handling of external/unresolvable assemblies (no more crashes)
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* Auto-detection of .NET Core/5+/6/7/8+ runtime assembly paths
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* CLI `--snkey` and `--snkeypass` options for CI/CD signing
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* Wildcard module loading in `.crproj` files
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* Roslyn analyzers (NetAnalyzers + Roslynator) for code quality
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* GitHub Actions CI/CD with automatic releases
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* Better error messages for .NET 6+ native host executables
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## Usage
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An actively maintained .NET obfuscator. Protects assemblies from .NET Framework 2.0 through .NET 10+.
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```bash
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Confuser.CLI.exe <path to project file>
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```
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The project file is a ConfuserEx Project (`*.crproj`).
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The format of project file can be found in [docs/ProjectFormat.md][project_format].
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### CLI Options
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```
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-n|noPause : no pause after finishing protection
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-o|out : specifies output directory
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-probe : specifies probe directory
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-plugin : specifies plugin path
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-debug : specifies debug symbol generation
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-snkey : specifies strong name key file path
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-snkeypass : specifies strong name key password
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```
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## Building from Source
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### Prerequisites
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The original [mkaring/ConfuserEx][mkaring] has been dormant since 2022. This fork ships bug fixes, modern framework support, and an automated release pipeline.
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* [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0) (or later)
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* [.NET Framework 4.8 Developer Pack](https://dotnet.microsoft.com/download/dotnet-framework/net48) (for library targets and test subjects)
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* [Visual Studio 2025+](https://visualstudio.microsoft.com/) with **Desktop development with C++** workload (for the C++/CLI test project)
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* Windows 10/11 (WPF GUI is Windows-only)
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## Get Started
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### Build
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Download the latest build from [Releases][releases], extract, and run:
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```bash
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# Full solution (requires VS 2025+ MSBuild 18)
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msbuild Confuser2.sln -p:Configuration=Release
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# GUI
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ConfuserEx.exe
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# .NET projects only (without C++/CLI test project)
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dotnet build Confuser2.sln -c Release
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# Run tests
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dotnet test Confuser2.sln -c Release
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# CLI
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Confuser.CLI.exe my-project.crproj
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```
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### Target Frameworks
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| Project | TFM |
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|---------|-----|
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| Core, Protections, Renamer, DynCipher | net48 + netstandard2.0 |
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| GUI (ConfuserEx) | net10.0-windows |
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| CLI (Confuser.CLI) | net10.0 |
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| Runtime | net20 (injected into targets) |
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See the [Getting Started Guide](docs/getting-started.md) for walkthroughs and configuration.
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## Bug Report
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## Documentation
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See the [Issues][issues] section. Please check existing issues before filing a new one.
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| | |
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|---|---|
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| [Getting Started](docs/getting-started.md) | Installation, first run, basic configuration |
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| [Protections](docs/protections.md) | All protections with options, presets, and examples |
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| [CLI Reference](docs/cli-reference.md) | Command-line options and usage |
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| [Project File Format](docs/ProjectFormat.md) | `.crproj` XML schema, rules, and pattern expressions |
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| [Declarative Obfuscation](docs/declarative-obfuscation.md) | Attribute-based configuration via `[Obfuscation]` |
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| [Building from Source](docs/building.md) | Prerequisites, build commands, and project layout |
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| [Contributing](CONTRIBUTING.md) | How to contribute, test policy, and PR workflow |
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## Contributing
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## Issues
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1. Fork the repository
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2. Create a branch from `develop` (see [CONTRIBUTING.md](CONTRIBUTING.md) for naming conventions)
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3. Make your changes and ensure CI passes
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4. Open a PR targeting `develop`
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Check [existing issues][issues] first, then [open a new one][new_issue].
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## License
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Licensed under the MIT license. See [LICENSE.md][license] for details.
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MIT. See [LICENSE.md][license].
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## Credits
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- **[0xd4d][0xd4d]** — [dnlib][dnlib]
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- **[Ki (yck1509)][ki]** — original ConfuserEx
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- **[Martin Karing][mkaring]** — maintained through v1.6
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## Contributors
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<a href="https://github.com/mcpolo99/ConfuserExx/graphs/contributors">
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<img src="https://contrib.rocks/image?repo=mcpolo99/ConfuserExx" />
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</a>
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## Credits
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**[0xd4d]** for [dnlib][dnlib] and extensive .NET metadata knowledge.
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**[Ki (yck1509)][ki]** for the original ConfuserEx.
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**[Martin Karing][mkaring]** for maintaining the project through v1.6.
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<!-- links -->
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[0xd4d]: https://github.com/0xd4d
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[dnlib]: https://github.com/0xd4d/dnlib
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[ki]: https://github.com/yck1509
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[mkaring]: https://github.com/mkaring
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[upstream]: https://github.com/mkaring/ConfuserEx
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[mkaring]: https://github.com/mkaring/ConfuserEx
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[ci]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/ci.yml
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[test]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/test.yml
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[codeql]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/codeql-analysis.yml
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[issues]: https://github.com/mcpolo99/ConfuserExx/issues
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[new_issue]: https://github.com/mcpolo99/ConfuserExx/issues/new/choose
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[releases]: https://github.com/mcpolo99/ConfuserExx/releases
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[license]: LICENSE.md
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[project_format]: docs/ProjectFormat.md
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[img_ci]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/ci.yml/badge.svg?branch=main
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[img_ci]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/ci.yml/badge.svg
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[img_test]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/test.yml/badge.svg
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[img_codeql]: https://github.com/mcpolo99/ConfuserExx/actions/workflows/codeql-analysis.yml/badge.svg
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[img_license]: https://img.shields.io/github/license/mcpolo99/ConfuserExx.svg?style=flat
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[img_license]: https://img.shields.io/github/license/mcpolo99/ConfuserExx.svg

‎docs/building.md‎

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# Building from Source
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## Prerequisites
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- [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0) (or later)
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- [.NET Framework 4.8 Developer Pack](https://dotnet.microsoft.com/download/dotnet-framework/net48)
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- [Visual Studio 2025+](https://visualstudio.microsoft.com/) with **Desktop development with C++** workload (only needed for the C++/CLI test project)
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- Windows 10/11 (WPF GUI is Windows-only)
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## Build
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```bash
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# Full solution (requires VS 2025+ / MSBuild 18 for C++/CLI test project)
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msbuild Confuser2.sln -p:Configuration=Release
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# .NET projects only (skips C++/CLI test — works without VS C++ workload)
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dotnet build Confuser2.sln -c Release
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```
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## Test
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```bash
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# All tests
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dotnet test Confuser2.sln -c Release
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# Specific test project
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dotnet test Tests/Confuser.CLI.Test/Confuser.CLI.Test.csproj -c Release
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# With coverage
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dotnet test Confuser2.sln -c Release --collect:"XPlat Code Coverage"
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```
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## Clean
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```bash
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./scripts/clean-build-artifacts.sh
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```
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## Project Layout
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```
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Confuser.Core/ Core obfuscation engine
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Confuser.Protections/ Built-in protection implementations
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Confuser.Renamer/ Renaming protection (separate due to complexity)
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Confuser.DynCipher/ Dynamic cipher generation for protections
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Confuser.Runtime/ Runtime stubs injected into protected assemblies (net20)
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Confuser.CLI/ Command-line interface
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ConfuserEx/ WPF GUI application
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Confuser.MSBuild.Tasks/ MSBuild integration NuGet package
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Tests/ Unit, integration, and end-to-end tests
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docs/ Documentation
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scripts/ Build and maintenance scripts
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additional/ Example .crproj files
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```
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## Target Frameworks
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| Project | TFM | Notes |
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|---------|-----|-------|
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| Core, Protections, Renamer, DynCipher | `net48` + `netstandard2.0` | Multi-targeted for broad compatibility |
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| GUI (ConfuserEx) | `net10.0-windows` | WPF, Windows-only |
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| CLI (Confuser.CLI) | `net10.0` | Cross-platform |
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| Runtime | `net20` | Injected into target assemblies at any framework level |
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| MSBuild Tasks | `netstandard2.0` | Runs inside MSBuild process |
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## CI/CD
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| Workflow | Trigger | Purpose |
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|----------|---------|---------|
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| `ci.yml` | Push to `master`, `pre-release`, `feature/**`, `fix/**` + PRs to `master`/`pre-release` | Build, package, create releases |
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| `test.yml` | Push to `master`, `pre-release`, `feature/**`, `fix/**` + PRs to `master`/`pre-release` | Build, test, coverage report |
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| `format.yml` | Every push | Code style and Roslyn analyzer checks |
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| `codeql-analysis.yml` | Weekly + manual | Security analysis |
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Releases are created automatically by `ci.yml`:
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- Push to `pre-release` branch creates (or updates) a pre-release on GitHub
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- Push to `master` branch creates a stable versioned release with a git tag
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Versioning is handled by [Nerdbank.GitVersioning](https://github.com/dotnet/Nerdbank.GitVersioning) from `version.json`.

‎docs/cli-reference.md‎

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# CLI Reference
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## Usage
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```bash
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Confuser.CLI.exe [options] <project-file>
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```
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The project file is a `.crproj` XML file describing which modules to protect and which protections to apply. See [Project File Format](ProjectFormat.md).
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## Options
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| Option | Description |
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|--------|-------------|
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| `-n`, `--noPause` | Do not pause after finishing (useful in CI/CD) |
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| `-o`, `--out <dir>` | Override the output directory from the project file |
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| `-probe <dir>` | Add a probe directory for dependency resolution |
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| `-plugin <path>` | Load a protection plugin from the given path |
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| `-debug` | Generate debug symbols (`.pdb`) for the protected output |
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| `-snkey <path>` | Strong name key file (`.snk` or `.pfx`) for signing |
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| `-snkeypass <password>` | Password for the strong name key (when using `.pfx`) |
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## Examples
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### Basic protection
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```bash
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Confuser.CLI.exe MyApp.crproj
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```
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### Override output directory
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```bash
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Confuser.CLI.exe MyApp.crproj -o ./protected
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```
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### CI/CD with strong-name signing
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```bash
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Confuser.CLI.exe MyApp.crproj -n -snkey signing.snk
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```
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### With a plugin
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```bash
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Confuser.CLI.exe MyApp.crproj -plugin ./MyCustomProtection.dll
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```
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### Multiple probe paths
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```bash
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Confuser.CLI.exe MyApp.crproj -probe ./libs -probe ./shared
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```
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## Exit Codes
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| Code | Meaning |
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|------|---------|
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| `0` | Protection completed successfully |
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| non-zero | Protection failed (check console output for details) |
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## MSBuild Integration
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The `Confuser.MSBuild.Tasks` NuGet package runs the CLI as a post-build step:
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```xml
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<PackageReference Include="Confuser.MSBuild.Tasks" Version="1.7.0-*" />
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```

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