Can the VFP Compiler be decrypted?
 

With the Defox IV down the only unsolved protection for Visual Fox Pro programs is VFP Compiler from the following link:

http://www.baiyujia.com/vfpcompiler/en/default.asp

The author, Mr. Chen, say it's unbreakable.

Can anyone managed to decompile programs protected with VFP compiler?

I think it is "unbreakable" with the "normal" VFP decompilers because it doesn't use the VFP runtimes to interprete P-CODE.

Instead, VFP Compiler generates native binary code produced by C++ Compiler.

If you get some C++ decompiler, you can get the C++ source code, but not the VFP sources, FORMs, etc.

With Defox IV we can hardly reverse to get the source code of programs written in VFP except Defox author. As for the VFP compiler is still able to be decompiled. Does anyone have an example of this can be posted for all to try.

@congviet
Say it with other words that is the question. Chosen wording is unclear and leaves room for interpretation. I for one do not understand who is asking exect.

No VFP program can not be decompiled
 

Yes, No VFP program can not be decompiled. :D
I think that the DEFOX IV is the best encryption tools of VFP, although it still can be decompiled, but very difficult. Come on, Leonid, getting better and better!:)

Hello Aming!
 

You deserve all of our respects!
I've sent you a couple of messages but your imbox is full.
Please clear of those messges...
There are a few adviced voices in the world regarding VFP decryption and you are among the first ones.
Regarding Defox IV all i can say is that it can be decompiled with the VH2011.
I tryed myself both on Defox III and Defox IV.
The process is painful on large apps but it works.
Still defox IV makes the reconstruction of the app verry dificult.
Regarding source code all is retrieved.
For the VFP Compiler there is no public cure yet except the author whitch, of course, does not publish a reverse program for his protection.:D

I'm sorry but also do it can decompile vfp compiler but there is no a method only automatic can be manually removing the dependencies of c ++

defox iv is relatively easy for a person with experience in decompile,We already tried in another post

Not quite easy....
 

If is standalone executable the aproach method is not quite easy.
If it's a a app who have reports or tables who are called during the execution process the prog is a sure victim.
The experience takes it's price here.