ExeShield

With ExeShield it's easy to turn your applications into
"try-before-you-buy" software with very little effort,
and maximum protection against piracy, backdating,
reverse-engineering or any kind of tampering.
ExeShield will protect virtually any Win32 executable, including:
.NET
Visual Basic
Delphi
C++
C++ Builder
PowerBasic
MASM
Visual Studio
Flash Executables
RealBasic
BlitzBasic
FPS Creator
DarkBasic