How Can I Recover C# Source Code from a .NET EXE File?

Retrieving Lost C# Source Code from a .NET EXE:

Losing the source code for a deployed .NET application is a common problem. This guide details how to use Reflector and its FileDisassembler add-in to recover a usable version of your C# code.

Using Reflector and FileDisassembler:

Reflector is a powerful tool that decompiles .NET assemblies (including EXEs) into readable C#. Its intuitive interface makes understanding the decompiled code relatively straightforward. To improve the process further, use the FileDisassembler add-in. FileDisassembler enhances Reflector's capabilities by generating a Visual Studio solution from the decompiled code, allowing you to work with it directly in your IDE.

Steps:

1. Install Reflector on your computer.
2. Load the .NET EXE file into Reflector.
3. Access the "Tools" menu and select "FileDisassembler."
4. Choose your preferred output format (e.g., a C# solution) and specify the output folder.
5. Initiate the disassembly process by clicking "Disassemble." This will create a Visual Studio solution containing the decompiled code.

Important Notes:

• The recovered code might differ slightly from the original due to compiler optimizations or obfuscation techniques.
• External library references will be missing from the regenerated solution and must be added manually.
• Thoroughly test and verify the accuracy of the recovered code before using it in a production environment.

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