RE: Security of C# dll

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The answer is ‘it depends’.

When C# and VB.NET code is compiled, it is compiled to MSIL (Microsoft
Intermediate Language), and during this process a large amount of metadata is
created which is easily readable and can be used for many things such as
reverse engineering and code interoperability.

Take a look at the .NET Reflector (http://www.aisto.com/roeder/dotnet/) to
get an idea of what can be done with this metadata.

In order to eliminate much of this useful information, you can obfuscate the
data with something like
Dotfuscator(http://www.preemptive.com/products/dotfuscator/) which renames
all of the names and other telling bits of data within the assembly so as to
make reverse engineering much more difficult.

Brendan


"Homer Simpson" wrote:

> Hi Everyone,
>
> How secure are C# DLLs? I knowVBA can easily be opened with a variety of
> tools found on the internet but how about C#? How can I make my DLLs more
> secure?
>
> Thanks,
> Scott
>
>
>
.

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