C# App Decompiling question   

Hi

Is it possible to decompile a C# developed .exe file (release version)

Note: i am not interested in decompiling any app, but want to know if this 
can be done, cause i often send my app in debug versions, to clients who 
have not yet paid for the job, need to know the possibilities.

TIA
Barry

date: Thu, 3 Jul 2008 18:10:31 +0500   author:   Barry

Re: C# App Decompiling question   

Yea, it's quite easy to do. The only trouble will be variable names, but  
all functions, flasses and namespaces will be normal.

Minimal solution is to use Dotfuscator. You can find it in  
Tools->Dotfuscator in VS2008.

On Thu, 03 Jul 2008 09:10:31 -0400, Barry  wrote:

> Hi
>
> Is it possible to decompile a C# developed .exe file (release version)
>
> Note: i am not interested in decompiling any app, but want to know if  
> this
> can be done, cause i often send my app in debug versions, to clients who
> have not yet paid for the job, need to know the possibilities.
>
> TIA
> Barry
>
>
>



-- 
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

date: Thu, 03 Jul 2008 10:58:44 -0400   author:   Ilya Albrekht

Re: C# App Decompiling question   

Barry,

You need to download "Reflector for .NET" at 
http://www.aisto.com/roeder/dotnet.  It will demonstrate how easy it is 
to reverse engineer .NET apps.  You can also use ildasm.exe to decompile 
to IL code, change it, and ilasm.exe to recompile.

Jason Newell
www.jasonnewell.net

Barry wrote:
> Hi
> 
> Is it possible to decompile a C# developed .exe file (release version)
> 
> Note: i am not interested in decompiling any app, but want to know if this 
> can be done, cause i often send my app in debug versions, to clients who 
> have not yet paid for the job, need to know the possibilities.
> 
> TIA
> Barry
> 
> 
>

date: Thu, 03 Jul 2008 11:18:07 -0500   author:   Jason Newell

Re: C# App Decompiling question   

Barry  wrote:
> Is it possible to decompile a C# developed .exe file (release version)

Yes. The easiest thing is to try it yourself on your own code.

> Note: i am not interested in decompiling any app, but want to know if this 
> can be done, cause i often send my app in debug versions, to clients who 
> have not yet paid for the job, need to know the possibilities.

What exactly are you worried about? My own view is that once you've 
seen the software, it would usually take more time to reverse engineer 
it and support it from the decompiled code than to rewrite.

-- 
Jon Skeet - 
Web site: http://www.pobox.com/~skeet   
Blog: http://www.msmvps.com/jon_skeet
C# in Depth: http://csharpindepth.com

date: Thu, 3 Jul 2008 19:16:48 +0100   author:   Jon Skeet [C# MVP]

Re: C# App Decompiling question   

> What exactly are you worried about? My own view is that once you've 
> seen the software, it would usually take more time to reverse engineer 
> it and support it from the decompiled code than to rewrite.
> 
So totaly agree on that.
I like the way you put it simply and clearly as well!

date: Fri, 4 Jul 2008 14:59:50 +0930   author:   Lloyd Dupont

Re: C# App Decompiling question   

Hi

Thank you guys for your quick and informative replies.

I am not interested in any tools for decompiling i just wanted to know if 
this is possible on a Release Version.  I have tried Dotfuscator, but not 
interested to pay extra for their full-version.

TIA
Barry


"Barry"  wrote in message 
news:%23ZVjt4Q3IHA.5060@TK2MSFTNGP02.phx.gbl...
>
> Hi
>
> Is it possible to decompile a C# developed .exe file (release version)
>
> Note: i am not interested in decompiling any app, but want to know if this 
> can be done, cause i often send my app in debug versions, to clients who 
> have not yet paid for the job, need to know the possibilities.
>
> TIA
> Barry
>
>
>

date: Fri, 4 Jul 2008 17:13:17 +0500   author:   Barry

Re: C# App Decompiling question   

Hi, I've seen opensource free Dotfuscator.

On Fri, 04 Jul 2008 08:13:17 -0400, Barry  wrote:

> Hi
>
> Thank you guys for your quick and informative replies.
>
> I am not interested in any tools for decompiling i just wanted to know if
> this is possible on a Release Version.  I have tried Dotfuscator, but not
> interested to pay extra for their full-version.
>
> TIA
> Barry
>
>
> "Barry"  wrote in message
> news:%23ZVjt4Q3IHA.5060@TK2MSFTNGP02.phx.gbl...
>>
>> Hi
>>
>> Is it possible to decompile a C# developed .exe file (release version)
>>
>> Note: i am not interested in decompiling any app, but want to know if  
>> this
>> can be done, cause i often send my app in debug versions, to clients who
>> have not yet paid for the job, need to know the possibilities.
>>
>> TIA
>> Barry
>>
>>
>>
>
>



-- 
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

date: Fri, 04 Jul 2008 11:23:30 -0400   author:   Ilya Albrekht

Re: C# App Decompiling question   

Hi Barry,

IMHO the dotfusctator community edition does not really protect your code. 
It's rather easy to read. Plus, your stacktraces will be messed up because 
all the methods have been renamed.

Kind regards,
Henning Krause

"Barry"  wrote in message 
news:eUTTa9c3IHA.3348@TK2MSFTNGP03.phx.gbl...
>
> Hi
>
> Thank you guys for your quick and informative replies.
>
> I am not interested in any tools for decompiling i just wanted to know if 
> this is possible on a Release Version.  I have tried Dotfuscator, but not 
> interested to pay extra for their full-version.
>
> TIA
> Barry
>
>
> "Barry"  wrote in message 
> news:%23ZVjt4Q3IHA.5060@TK2MSFTNGP02.phx.gbl...
>>
>> Hi
>>
>> Is it possible to decompile a C# developed .exe file (release version)
>>
>> Note: i am not interested in decompiling any app, but want to know if 
>> this can be done, cause i often send my app in debug versions, to clients 
>> who have not yet paid for the job, need to know the possibilities.
>>
>> TIA
>> Barry
>>
>>
>>
>
>

date: Fri, 4 Jul 2008 19:13:51 +0200   author:   Henning Krause [MVP - Exchange]

Re: C# App Decompiling question   

> You can also use ildasm.exe to decompile to IL code, change it, and 
> ilasm.exe to recompile

It's even easier. There's a nice add-in to Reflector that will do this for 
you. It will even let you add new code to a single function and rebuild the 
assembly.

Andrew Faust

"Jason Newell"  wrote in message 
news:uT8vhhS3IHA.4448@TK2MSFTNGP05.phx.gbl...
> Barry,
>
> You need to download "Reflector for .NET" at 
> http://www.aisto.com/roeder/dotnet.  It will demonstrate how easy it is to 
> reverse engineer .NET apps.  You can also use ildasm.exe to decompile to 
> IL code, change it, and ilasm.exe to recompile.
>
> Jason Newell
> www.jasonnewell.net
>
> Barry wrote:
>> Hi
>>
>> Is it possible to decompile a C# developed .exe file (release version)
>>
>> Note: i am not interested in decompiling any app, but want to know if 
>> this can be done, cause i often send my app in debug versions, to clients 
>> who have not yet paid for the job, need to know the possibilities.
>>
>> TIA
>> Barry
>>
>>
>>

date: Fri, 11 Jul 2008 11:11:58 -0600   author:   Andrew Faust