Demeanor for.NET
Demeanor for.NET protects your intellectual property by making it extremely difficult to reverse engineer your .NET applications. Unprotected .NET applications can be easily reverse engineered via decompilation and inspection by many decompiler products.
Path to download
http://www.wiseowl.com/products/products.aspx
Reference: http://www.wiseowl.com/products/products.aspx