http://rongchaua.net/tools-mainmenu-36/106-dedot-a-deobfuscator-for-dotfuscator

>But how safe is it Craig?
>
>>You can use Dotfuscator. A community edition ships with VS2008 and later or you can purchase a version that does more.
>>
>>>Hi There
>>>
>>>Were developing a comercial grade application.
>>>
>>>I understand that C# and VB.net code is fairly easy to reverse engineer from the Microsoft Intermediate Language and Metadata contained in assemblies.
>>>
>>>Is it possible to get as close as possible to 100% source code protection using Obfuscation and any other techniques ?
>>>What are the best techniques to ensure source code protection.
>>>
>>>TIA