Vb.net create a module and deny the debug inside

Posted on 2012-03-24
Medium Priority
Last Modified: 2012-03-25
Hi ,

I have created a module with many functions and I like to deny the debug inside these functions.

There is a way to deny  the debug in one module in particular ?
Question by:luca345

Expert Comment

ID: 37761292
Can cannot prevent somebody to debug your module.
I think what you need is an obfuscator so debugging is very hard.
Something like Obfuscar.
LVL 17

Expert Comment

ID: 37761322
Add this at the begining ofthe sub
If Debugger.IsAttached Then Exit Sub

Open in new window

substitute to exit function where appropriate
LVL 40

Accepted Solution

Jacques Bourgeois (James Burger) earned 2000 total points
ID: 37763606
Depends on what you intend by denying debug.

Kelden solution is not one used to prevent debugging, it is one used to prevent reverse engineering. And obfuscators usually works on all the application. My understanding is that you want to act only on specific methods. Also unless you have an Express version of Visual Studio, there is an obfuscator built-in, so no need to to look outside of the box.

nepaluz solution works very well, but you usually use that technique to implements special things when debugging, not to exclude debugging. The instruction Debugger.IsAttached instruction ends up being compiled. Personnally, I do not like to have in my release version code that will do nothing. I would rather like to do what you want in a way that involves only the debugger, and is not executed uselessly everything the method is called in release. Personal taste here.

However, if you want to exclude specific lines of code inside of a method, and not exclude the whole method, this is the way to go.

If you simply want to prevent the debugger from entering in the code, you can add the DebuggerStepThrough attribute at the beginning of the methods that you want the debugger to skip:

 <System.Diagnostics.DebuggerStepThrough()> _
Public Function YourFunction As Something

If for some reason you need to debug the method, just comment out the line temporarily:

'<System.Diagnostics.DebuggerStepThrough()> _
Public Function YourFunction As Something
Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.


Author Closing Comment

ID: 37763641
Excellent , this solution is exactly what I need !!!

Author Comment

ID: 37763645
LVL 40
ID: 37764035
Done. Look in the other thread.

Featured Post

Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Whether you’re a college noob or a soon-to-be pro, these tips are sure to help you in your journey to becoming a programming ninja and stand out from the crowd.
Q&A with Course Creator, Mark Lassoff, on the importance of HTML5 in the career of a modern-day developer.
The goal of this video is to provide viewers with basic examples to understand and use conditional statements in the C programming language.
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.

619 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question