Es posible!! encontre algo que les resultara interesante:
Starting from .NET 2.0, a native compilation feature will be introduced to compile all managed assemblies into x86 machine code, and thus improves performance and stops disassembling and decompilation. Not even a single MSIL instruction will be ever delivered to your customers.
Visiten
http://www.remotesoft.com/linker/ y opinen al respecto.
saludos a todos
pedrok