Generate random filename, random assembly version, random windowname, add junk code, randomize as much as possible and as @[NEWACCOUNT]Yano already said, Crypt it.
Vamphilim (07-23-2015)
Vamphilim (07-26-2015)
Vamphilim (07-27-2015)
.NET Reflector is good but, not the free Version.