EX4 to mql4

if there any protection tool  to used it with ex4 to add licence code and account number or expairy date 

1. There has be zero proof that any ex4/5 can be decompiled since February 3, 2014 (Build 600)
             Upcoming MetaTrader 4 and MQL4 Upgrades - Big Changes Are Underway (MetaQuotes Software Corp.) - MQL4 and MetaTrader 4 - MQL4 programming forum
             Code Protection: New MQL4 language(Build 600+) decompilation protection and other crack techniques. (Macos Silva) - MQL4 and MetaTrader 4 - MQL4 programming forum - Page 2

2. Ask the owner of the source code to give it to you or have him fix it for you.

   Decompiled code is stolen code. Either you are a thief, a fence, or the receiver of stolen (intellectual) property. Either way we will not be an accomplice after the fact to theft.
             See also forum.MQL4.com/41864#490649

   If you post decompiled code again, you will likely be banned.

   Don't tell us you found it on the 'net: if someone stole your bank details and uploaded them on to the internet, is it OK for everyone to use them because "someone uploaded it, I don't know why I can't use that"?

3. Don't double post!
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My question is can MQL5.com decompile our .ex4 that we send to sell? I guess they can as the adapt that .ex4 with the limited number of machines it can be used right?

Greetings

They definitively can decipher the protection, otherwise they could not run it in the terminal. They definitively have the know-how for decompiling. The only unclear point is if they have any motivation for developing application for reverse-engineering the source (which I doubt).

That's stealing and fraud, you need to go to jail. Contact the actual programmer for that ex4 file before we start calling the police to come and lock you.