Create a DLL Protection for a Forex MT4 MQL EA

Hello, I have an Metatrader 4 Expert Advisor that I want to protect against Decompilation. The EA should only work with one real money account and unlimited demo accounts. Because MQ4 can be decompiled very easy, I need a different method. I think of giving the whole trade logic of my EA to a DLL-file that should be protected against Decompilation. So I need someone to place the whole trade logic of my EA (very simple trade logic in my opinion) to a protected DLL-file. I also need the source code of this DLL-file because when I want to update my EA, I want to update this DLL-file by myself. If you have experience by making such a job or if you have a better idea of protecting an Metatrader 4 EA please place a bid. If you have questions regarding the project feel free to ask me.