01 / OBFUSCATION
Make your logic harder to read.
Renaming, control-flow transformations, string encryption and constant protection work together to obscure the intent of your code.
In testingCore protection
In active development · .NET protection suite
Protect the code.Preserve the application.
Layered obfuscation and software protection for .NET applications. Built for the code you’ve invested in — with advanced virtualization in development for Enterprise.
Independent technology
An independently developed protection architecture and virtualization engine.
Layered protection
Compatible protections combine, rather than relying on any single technique.
Correctness-first
Behaviour preservation and output validation guide development and testing.
Transparent reporting
See what was protected, what was skipped and why.
01 The problem
.NET assemblies give away more than you think.
C# and VB.NET compile to CIL, which keeps enough structure that tools like dnSpy and ILSpy can reconstruct readable versions of your logic.
Without protection, anyone with a decompiler can inspect proprietary algorithms, understand implementation details, or modify how your application behaves. DN Shield transforms compiled assemblies through multiple protection techniques to make that work substantially harder.
Without protection private int CalculateLicenseValue(int input) { return (input * 17) + 42; }
After DN Shield private int a(int b) { // string, constants & flow transformed return c.d(b); // delegates to protection runtime }
i Illustrative — exact output depends on the protections you enable.
02 Protection
Protection.
Layer by layer.
02 / INTEGRITY
Protect what you distribute.
Metadata, resource and integrity protections add layers around the assemblies you ship. Anti-debugging measures remain in development.
In testingApplication integrity
03 / ENTERPRISE
Go deeper with virtualization.
Translate selected methods into custom instructions executed by DN Shield’s runtime. Designed for your most valuable application logic.
PrototypeExplore the engine
03 Editions
Choose your level
of protection.
Professional brings together core obfuscation and application protection. Enterprise adds custom virtualization for your most valuable logic.
Professional
.NET Shield Professional
Professional protection for the software you build.
Comprehensive, dependable obfuscation and application protection for individual developers, ISVs and small teams.
- Identifier renaming, control-flow & string encryption
- Constant protection & code mutation
- Metadata, resource & anti-tamper protection
- Profiles, reports & output validation
Enterprise Advanced
.NET Shield Enterprise
Advanced protection for your most valuable code.
Everything in Professional, plus an independently developed code-virtualization engine and planned application packer for high-value logic.
- Everything in Professional
- Custom code virtualization Prototype
- Attribute-based VM selection
- Advanced VM protections & application packer Planned
04 Enterprise · Code virtualization
Your critical logic.
A different instruction set.
Working prototype — in development
Traditional obfuscation changes how existing instructions read. Virtualization goes further: selected methods are translated into a custom instruction set and executed by DN Shield’s own runtime interpreter, so the original method body is no longer sitting in your assembly as ordinary CIL.
You choose exactly which methods to virtualize using the standard .NET ObfuscationAttribute — no proprietary library reference required in your code.
01
Mark the method
Annotate sensitive methods in source with the standard attribute.
02
DN Shield transforms it
The protection engine recognises the attribute and translates the method into custom VM instructions.
03
Runtime executes it
A stub delegates to the interpreter, which performs the original operations — preserving return values, state and exceptions.
[System.Reflection.Obfuscation( Feature = "Virtualization", Exclude = false)] private int CalculateLicenseValue(int input) { return (input * 17) + 42; }
Protection with clear limits. Methods that can’t be safely virtualized are reported, never silently skipped. DN Shield does not claim its virtualization is impossible to reverse engineer — the goal is to raise the effort required.
05 Development status
In development.
Built in stages.
DN Shield is an active development project. Here’s what’s underway now and what’s ahead — directional, not a dated promise.
In progress
01
Engine stabilization
A clean, independent protection engine. Improve existing obfuscation, remove obsolete dependencies and build a robust automated testing foundation.
In progress
02
Advanced virtualization
Expand the independently developed virtualization system, improve correctness and compatibility, measure performance and evaluate reverse-engineering resistance.
03
Product experience
A polished, accessible desktop application with configurable workflows, comprehensive reporting and professional documentation.
06 FAQ
Straight answers.
Is DN Shield available to buy today?
Not yet. DN Shield is in active development. You can request early access and we’ll keep you posted as editions become available. Pricing and licensing terms haven’t been finalised.
What does it protect?
Compiled .NET assemblies — C# and VB.NET. The goal is to support a practical range of .NET Framework and, over time, modern .NET applications. Exact support depends on the protection and is established through testing.
Can any obfuscator make my code impossible to reverse engineer?
No — and we won’t claim otherwise. No commercial obfuscator can guarantee that. DN Shield’s objective is to substantially increase the effort, expertise and resources required to analyse protected applications.
Will protection break my application?
Correctness comes before complexity. DN Shield prioritises reproducible results and conservative handling of unsupported instructions, and won’t ship transformations known to introduce errors or change behaviour. Protection reports tell you exactly what was and wasn’t applied.
How is this different from .NET Reactor or DNGuard?
DN Shield draws inspiration from established products but is independently built — its own architecture, virtualization engine, workflow and roadmap. We make no claims of superior protection or compatibility without evidence to back them up.
Protecting .NET software you’ve invested in building?
Request early access and we’ll be in touch as editions become available. Tell us what you’re protecting and we’ll point you to the right one.
No spam. We only use your details to reply.