How to prevent a particular .NET DLL from being decompiled?
assemblies and other similar options, you convert your source code into
DLL and deploy it. You convert your program into DLL files because they
dont include any source code thereby ensuring security of your code.
However you have provisions to decompile your DLL back to your source code. For performing such DLL decompilation, many third party products like Reflector are available. Even Microsoft provides a tool to perform such DLL decompilation. That tool is termed as ILDASM. But performing such decompilation and getting hold of the code is very dangerous in terms of security when the decompilation is performed by some one who is not part of your team. Hence it is always recommended to prevent your DLL from being decompiled. This is achieved using Obfuscation.
Microsoft provides a solution called Dotfuscator Community editor to perform obfuscation. This solution is available as part of Visual Studio .NET. Several other third party solutions are also available to accomplish obfuscation. Few of them are: Demeanor and Xenocode.
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