Derek, if it's early days with NET then take the time to investigate declarative obfuscation options. There are good reasons *not* to obfuscate everything- e.g. if you want to use reflection. This is something you'd want to design in from the start IMHO. Also, check out some of the newer obfuscators that encrypt/compress. I understand that some of them build twists into the compression that add an extra layer of complexity.

The reality is that "protection" is simply about making decomilation not worthwhile. The "community" obfuscator will send away casual hackers; the professional encrypting/twisting versions impose a cost of tens or hundreds of thousands of $ to pick things apart, which is enough for many apps. IMHO. ;-)