Using Eazfuscator but code can still be read from the assemblies?

I am trying to protect my dll from disassemblers. I am using "Eazfuscator.NET Assistant" as dll encryption tool. but after that the Reflector still can read the source code. is it anything i need to do before using Eazfuscator开发者_如何学运维 or after? or can anybody can introduce me a free encryption tools which it is can help me to encrypt my source code?

Thank you very much.

You can consider .Net Reactor it works for me.

You can try code obfuscators. Also you can try to pack your dll with software like UPX. Although it could be disassembled it will be much harder do understand what's going on in the assembly.

There are some more techniques like:

1. Adding garbage code, which can confuse anyone reading disassembly.
2. Adding breakpoint detection code.
3. Adding self modifying code.
4. Doing PEB structure checks.