Protect .NET code from reverse engineering?

Question

Obfuscation is one way, but it can\'t protect from breaking the piracy protection security of the application. How do I make sure that the application is not tampered with,

Answer 1

Frankly, sometimes we need to obfuscate the code (for example, register license classes and so on). In this case, your project is not free. IMO, you should pay for a good obfucator.

Dotfuscator hides your code and .NET Reflector shows an error when you attempt to decompile it.