When you want to release your .net application to the public as closed source you should note that Microsoft .net applications are easy to decompile and reconstruct once distributed. In this article, I intend to explore various options and explain why we settled on one particular Obfuscator that is open source. We explored a range of commercial and open source obfuscators such as ConfuserEX, ConfuserEX2, DotFuscatorCE, Obfuscar with varying levels of success.