If you weren't already aware, you can use a product like [Reflector.NET](http://www.red-gate.com/products/reflector/) to see all of the source code (that's right, the code) of a .NET assembly (DLL, EXE, etc). This is a real problem when your code is proprietary, especially when you might have security implementations in the code. Thus, there is often a need to hide the implementation details - enter obfucation.

There is a [article on and list of obfuscators from C# 411](http://www.csharp411.com/net-obfuscators/) which explains the situation better. From my research, I decided to settle on the free and open source [Babel Obfuscator](http://code.google.com/p/babelobfuscator/). Part of the decision process was seeing it in action, which is especially easy when you install the [Babel add-in for Reflector](http://www.jasonhaley.com/blog/post/2009/08/18/ReflectorBabel-Addin.aspx).

Once you've decided that Babel is for you, the code below automates the process when added to the post-build event of your assembly. The parameters and settings are up to you, but this baseline should do everything you'll need.

"c:\Program Files\Babel\babel.exe" --types --events --methods --properties --fields --stringencrypt $(TargetPath)