Short description of .NET Reactor 4.0.0.0: .NET Reactor is a powerful code protection and software licensing system for software written for the .NET Framework, and supports all languages that generate .NET assemblies. .NET Reactor prevents decompilation by a variety of methods which convert your .NET assemblies (EXE & DLL) into processes which no existing tool can decompile. .NET Reactor builds a native code wall between potential hackers and your .NET assemblies.