I’ve had a lot of success with Xenocode Postbuild. The tool can obfuscate .NET assemblies, protect agaist Reflector disassembly, combine .NET assemblies into a single executable (“virtualization”) and even compile .NET applications to standalone executables that do not need .NET runtime installed.
To find out where a method MyClass.Foo() is used, you have to analyse all classes of all assemblies that have a reference to the assembly that contains MyClass. I wrote a simple proof of concept of how this code can look like. In my example I used this library (it’s just a single .cs file) … Read more
Also take a look at ILSpy by SharpDevelop. It’s in early stages of development and they just made a release on the 24th of February. That in itself works pretty good for me. From their website: ILSpy is the open-source .NET assembly browser and decompiler. Development started after Red Gate announced that the free version … Read more
I assume you were looking at the .NET 3.5 implementation? I believe the .NET 4 implementation is slightly different. However, I have a sneaking suspicion that this is because it’s possible to call even virtual instance methods non-virtually on a null reference. Possible in IL, that is. I’ll see if I can produce some IL … Read more
In plain Visual Studio (since 2010) you can right click a method name (definition in interface or implementation in other class) and choose View Call Hierarchy. In Call Hierarchy window there is “Implements” folder where you can find all locations of the interface method implementation.
One thing to keep in mind is that you want to do this in a way that makes business sense. To do that, you need to define your goals. So, exactly what are your goals? Preventing piracy? That goal is not achievable. Even native code can be decompiled or cracked; the multitude of warez available … Read more
Updated 13th December 2011 The following open source tools are available: ILSpy from the SharpDevelop team. Thanks to Scott Hanselman’s tweet highlighting the tool. Dotnet IL Editor (a disassembler) IL.View – a .NET Reflector alternative written in Silverlight 4 as an Out-of-Browser Silverlight Application. See this blog post for details.