Reflexil

Reflexil is an assembly editor and runs as a plug-in for Red Gate's Reflector, ILSpy and Telerik's JustDecompile. Reflexil is using Mono.Cecil, written by Jb Evain and is able to manipulate IL code and save the modified assemblies to disk. Reflexil also supports C#/VB.NET code injection. With advanced injection techniques (injecting a property will generate proper field and getter/setter for you). Easily update embedded, linked, or assembly-linked resources. Babel, CliSecure, CodeVeil, CryptoObfuscator, DeepSea, Dotfuscator, Reactor, Eazfuscator, Goliath, Skater, SmartAssembly, Spices, and Xenocode! Use C# or VB.NET to patch method behavior, then save the assembly to disk. Reverse engineering made easy! Create, update or delete IL instructions with all supported operands like type, field or method references (using a browser for selecting the suitable element).