.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. Its' main features are :

Intellectual property protection
NecroBit Protection
Native Code generation
Obfuscation
Control Flow Obfuscation
String Encryption
Anti Tampering
Resource Encryption and Compression
Dependency Merging
Protects full applications and libraries (dlls)
Powerful licensing system
Create trial versions of your software
Set an expiration date
Limit use to a fixed number of days after installation
Limit by number of uses
Limit to use for no more than a set number of minutes each invocation
Limit trial version functionality
Easily turn your trial version into a fully licensed version
License your software
Permanently (non expiring license)
By time period (i.e rent your software)
By number of uses (i.e software as a service)
Software development kit
Integrate license checking into you assembly and extend licensing fuctionality
Extend licensing functions with bespoke extensions.

Why you need to protect your intellectual property.

When you compile a program written for the Microsoft .NET framework, the program you provide to your users is not compiled into a native executable program, but instead is translated into something called the Common Intermediate Language instructions (CIL). CIL is half way between source code and native code, and is interpreted by the .NET framework when your program is run, rather than executed directly as machine code. Because of this, the source code of your application or library can be easily reproduced. Tools such as .NET Reflector (www.red-gate.com/products/reflector/) can reproduce source code from a compiled .NET assemblies in seconds, and in the .NET language of your choice! Clearly, commercial software distributed to end users without some form of protection is wide open to piracy and intellectual property theft.
The traditional solution to intellectual property protection in .NET is to use 'obfuscation', indeed Microsoft make an obfuscation utility available to Visual Studio users.

So why is obsfucation not enough?

Obfuscation is the process of making your source code more difficult (but not impossible) for humans to understand. Obfuscation works by replacing the meaningful names you assign to classes, methods, properties and variables with meaningless ones. For example, it may replace a variable name of "counter" with "A4DF3CV89G" - to humans these obfuscated names are confusing and difficult to remember, but have no effect on the NET Framework interpreter. Note that obfuscation does nothing to the source code within your methods, so it is not protected at all by obfuscation. .NET Reactor does everything an obfuscator does, but then wraps your intellectual property in several more layers of protection, denying access to your source code to even those who are determined to steal your hard work. .NET Reactor's protection has never been cracked, something which cannot be said about obfuscators.

Industry Leading .NET Reactor Source Protection

.NET Reactor prevents decompilation by a variety of methods which convert your .NET assemblies into processes which no existing tool can decompile ( and which are also very likely to prevent decompilation by any future tool). .NET Reactor builds a native code wall between potential hackers and your .NET assemblies by producing a file which cannot be understood directly as CIL. Because the CIL in your assembly is emitted intact only at run time or design time (in a form in which the source is completely inaccessible), no tool is capable of decompiling .NET Reactor protected assemblies.

The native code wall created by .NET Reactor between the hacker and your source includes industry leading NecroBit technology, which is exclusive to .NET Reactor. .NET Reactor's protection has never been broken since the first release in 2004. These technologies make reconstruction of your source code more difficult by so many orders of magnitude that NecroBit is by far the most effective protection you can use for .NET assemblies.

In addition to industry leading intellectual property protection, .NET Reactor provides powerful options for securing you revenue stream by enforcing licensing terms with a rich variety of trialversion and full version locks.

.NET Reactor offers you an easy and reliable way to:
Secure your .NET applications and .NET libraries
Replace CIL code with native code
Perform additional layers of protection, including obfuscation
Merge assemblies, and
Protect your revenue by enforcing trial version restrictions and full version licensing terms.



.NET Reactor is able to generate a native x86 EXE file stub for your application. This way it is not possible to directly open your protected application in a decompiler. The decompiler recognizes your protected application as a native EXE file.

In combination with the Native EXE File feature and NecroBit, .NET Reactor is able to convert managed methods into REAL x86 native code. Only methods which doesn't affect the runtime and platform behavior (mostly small methods like property getters/setters...) are converted into native code. By nature this feature has an built-in protection against assembly modification.

Declarative Obfuscation support allows you to directly define which types and members should be excluded from obfuscation. This can be done by using the custom attribute System.Reflection.ObfuscationAttribute in your source code. .NET Reactor automatically detects the attribute and excludes the corresponding types and members from obfuscation.

In addition to source protection, .NET Reactor provides thorough class and member obfuscation complemented by different exclusion schemes, use of non-printable characters in obfuscated names, and even incremental obfuscation, which always generates the same obfuscation strings for type and member names.

Powerful and flexible, the .NET Reactor licensing features allow you to enforce your license conditions and protect your revenue stream by using hardware and software locks. The license manager can build trial or permanent licenses, in a matter of seconds. A fully documented software development kit (SDK), complete with examples, allows you to call the licensing system directly from your code, allowing you to create custom extensions to the licensing system.



Windows Windows Forms Applications, Console Applications, Windows Services, Control & Class Libraries, WPF Applications & Libraries, WinRT/Metro Applications & Libraries
Web ASP.NET Applications & Libraries, ASP.NET Services, WCF Services, Sharepoint WebParts
Silverlight Silverlight Applications & Libraries
Smart Device Windows Phone and Compact Framework Applications & Libraries
Others SQL Server CLR Assemblies, Mono Applications & Libraries



Supported Languages:
_C#
_VB.NET
_C++.NET
_Delphi.NET
_J#
_MSIL
and many more..

Supported Platforms :
_Windows 98
_Windows ME
_Windows NT
_Windows 2000
_Windows XP
_Windows Server 2003, 2008, 2012, 2013
_Windows Vista
_Windows 7
_Windows 8/8.1


WHAT'S NEW :
- [+] Full Windows 10 support
- [+] Added Visual Studio 2015 Add-in
- [+] Added option to merge all obfuscated types inside a single namespace (random generated namespace or a user defined one)
- [+] Significantly improved obfuscation of virtual generic methods and generic method parameters
- [+] Improved event obfuscation. Now events are removed without affecting the runtime behavior
- [+] Improved NecroBit Protection
- [+] Improved Control Flow Obfuscation
- [+] Improved runtime performance of assemblies protected with String Encryption
- [+] Improved protection for Universal Apps and Universal/Portable Class Libraries
- [+] Now the menu item 'Tools'->'Generate Command-line Switches' generates encrypted passwords for strong name and digital certificate
- [+] Further minor obfuscation improvements
- [!] Fixed Windows Phone 8.1 protection issue
- [!] Fixed Windows Phone 8.1 deployment issue
- [!] Fixed protection problem on assemblies with ARM platform target
- [!] Fixed generic methods merging issue
- [!] Fixed problem affecting the combination Control Flow Obfuscation level 9 and cross assembly obfuscation
- [!] Fixed SQL assembly protection issue
- [!] Fixed network drive path issue
- [!] Fixed rare licensing problem affecting the combination 'Number Of Uses' + 'Run Without License File'->'True' + 'Individual Licensing Behaviour'->'True'
- [!] Fixed protection issue on classes containing properties decorated with JSON attributes
- [!] Fixed minor bugs

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