exe to C++ source code

[Michael Dekson]

Hello,
Can I exe file made in Microsoft Visual C++ decompile into source code.
If it is possibly please tell me how.
Thanks

[Sharad Kala]

Re: exe to C++ source code


"Michael Dekson" <nospam@nospam. com> wrote in message
news:c0d43v$6m0 $1@ariane.blic. net...[color=blue]
> Hello,
> Can I exe file made in Microsoft Visual C++ decompile into source code.
> If it is possibly please tell me how.
> Thanks[/color]

Not one I know of.
Compilers make many optimisations etc in the exe, so it's difficult to reach the
source code from the exe.

-Sharad

[Peter van Merkerk]

Re: exe to C++ source code

"Michael Dekson" <nospam@nospam. com> wrote in message
news:c0d43v$6m0 $1@ariane.blic. net...[color=blue]
> Hello,
> Can I exe file made in Microsoft Visual C++ decompile into source code.
> If it is possibly please tell me how.[/color]

What you are asking is how to turn a hamburger into a cow.

It is not possible to produce reasonable C++ source code from an .exe file,
even if you know exactly which compiler and the compiler settings (e.g.
optimization) were used to create the executable. Simply too much
information is lost in the compilation process.

--
Peter van Merkerk
peter.van.merke rk(at)dse.nl

[lallous]

Re: exe to C++ source code

"Michael Dekson" <nospam@nospam. com> wrote in message
news:c0d43v$6m0 $1@ariane.blic. net...[color=blue]
> Hello,
> Can I exe file made in Microsoft Visual C++ decompile into source code.
> If it is possibly please tell me how.
> Thanks
>
>[/color]
This has been discussed over and over, one of the replies I liked was:
"Can you return a hamburger back to a cow?" ;)

You can recover / rebuild the source code back from the binary but that will
take lots of time and that is rather called reverse engineering.

--
Elias

[Thomas Matthews]

Re: exe to C++ source code

Sharad Kala wrote:
[color=blue]
> "Michael Dekson" <nospam@nospam. com> wrote in message
> news:c0d43v$6m0 $1@ariane.blic. net...
>[color=green]
>>Hello,
>>Can I exe file made in Microsoft Visual C++ decompile into source code.
>>If it is possibly please tell me how.
>>Thanks[/color]
>
>
> Not one I know of.
> Compilers make many optimisations etc in the exe, so it's difficult to reach the
> source code from the exe.
>
> -Sharad
>
>[/color]

See my reply to your later post.

--
Thomas Matthews

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Other sites:
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[David Harmon]

Re: exe to C++ source code

On Wed, 11 Feb 2004 16:26:03 +0200 in comp.lang.c++, "lallous"
<lallous@lgwm.o rg> was alleged to have written:[color=blue]
>This has been discussed over and over, one of the replies I liked was:
>"Can you return a hamburger back to a cow?" ;)[/color]

You can, but it is no longer legal in informed locales due to BSE risk.

[Thomas Matthews]

Re: exe to C++ source code

Peter van Merkerk wrote:
[color=blue]
> "Michael Dekson" <nospam@nospam. com> wrote in message
> news:c0d43v$6m0 $1@ariane.blic. net...
>[color=green]
>>Hello,
>>Can I exe file made in Microsoft Visual C++ decompile into source code.
>>If it is possibly please tell me how.[/color]
>
>
> What you are asking is how to turn a hamburger into a cow.[/color]

Wrong. He is asking how to create a source file from an executable
code. This is far different than turning hamburger into a cow.
It is possible to create source code from an executable. The
probability of it looking like the original source code is
extremely low, so low that you would win a lottery many times
over.

[color=blue]
> It is not possible to produce reasonable C++ source code from an .exe file,
> even if you know exactly which compiler and the compiler settings (e.g.
> optimization) were used to create the executable. Simply too much
> information is lost in the compilation process.[/color]

Reasonable is in the eye of the beholder. I agree that the
generate source code will be difficult to understand.
However, I think many newbies should attempt the project just
so these posts will stop.
[color=blue]
>
> --
> Peter van Merkerk
> peter.van.merke rk(at)dse.nl[/color]


--
Thomas Matthews

C++ newsgroup welcome message:

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C Faq: http://www.eskimo.com/~scs/c-faq/top.html
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Other sites:
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[Guest]

Re: exe to C++ source code

Only to x86 Assembly.

Maybe to C but produced source will have no similarity with official source.
[color=blue]
> Can I exe file made in Microsoft Visual C++ decompile into source code.
> If it is possibly please tell me how.
> Thanks
>
>[/color]

[Thomas Matthews]

Re: exe to C++ source code

<- Chameleon -> wrote:
[color=blue][color=green]
>>Can I exe file made in Microsoft Visual C++ decompile into source code.
>>If it is possibly please tell me how.
>>Thanks
>>
>>[/color]
> Only to x86 Assembly.
>
> Maybe to C but produced source will have no similarity with official source.
>[/color]

1. Don't top-post. Replies are append to the end or
interspersed.

2. One can parse a Windows executable file into ARM assembly
or other assembly language, then into C or C++.
There are "byte-code" assembly languages which are an
intermediary step between the high-level language and
the platform. Many compilers, which compile to different
platforms, use this technique. They have specific back
ends that translate the intermediary language into
platform specific instructions.

--
Thomas Matthews

C++ newsgroup welcome message:

http://www.slack.net/~shiva/welcome.txt

C++ Faq: http://www.parashift.com/c++-faq-lite
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alt.comp.lang.l earn.c-c++ faq:

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Other sites:
http://www.josuttis.com -- C++ STL Library book