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

Barbara Streisand

Jan 17, 2025 am 05:46 AM

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

Recovering Lost C# Source Code: Decompiling .NET EXEs

Losing your C# source code? Recovering it from the compiled .NET EXE file is possible. This guide outlines the process of decompiling a .NET EXE to retrieve readable C# source code.

Decompilation Tools: Your Key to Recovery

Two powerful tools simplify this process:

Reflector: A robust decompiler providing a detailed view of the source code, including classes, methods, and namespaces.
FileDisassembler (Reflector Add-in): This add-in enhances Reflector's capabilities by allowing you to export the decompiled code as a Visual Studio solution, ready for editing and recompilation.

Step-by-Step Decompilation

Here's how to use Reflector and FileDisassembler:

Load the EXE into Reflector: Simply drag and drop your .NET EXE file into the Reflector application. The decompiled code will be displayed.
Use FileDisassembler to Extract: With FileDisassembler installed as a Reflector add-in, select the ".NET Assembly" within Reflector and click the "Disassemble" button.
Create a Visual Studio Solution: In the export dialog, choose "Create Visual Studio solution (.sln)" and select a save location.
Open in Visual Studio: Open the newly created solution in Visual Studio to access your decompiled C# source code.

Important Notes

Imperfect Reconstruction: The decompiled code might differ slightly from the original due to compiler optimizations and other factors.
Ethical Use Only: Decompilation should be used solely for recovering lost source code. It's crucial to avoid using this for illegal activities like piracy or malicious software development.

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