Visualize your source code with flow charts and UML activity diagrams. Visustin charts your code automatically. Print the charts or export to Visio, Word or PowerPoint. Visustin flowcharts Ada, ASP, assembly language, BASIC, C/C++, C#, Clipper, COBOL, Fortran, Java, JSP, JavaScript, LotusScript, Pascal/Delphi, Perl, PHP, PL/SQL, PowerScript, PureBasic, Python, QuickBASIC, REALbasic, T-SQL, VB, VBA, VB.NET and Visual FoxPro.

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:

Visual Basic
Delphi
C++
C++ Builder
PowerBasic
MASM
Visual Studio

This is an extension of the "Program Plus".
It enables compiling with options from windows explorer's menu.
You can compile next types of files: C/C++(c, cpp), C#(.cs), Java(.java), Assembler(.asm).

Obfuscator is a tool to modify x86 assembler source code in this way to make an analysis of compiled code very difficult.

It is an unusual tool and the target audience is quite small, but if you're writing assembler code and you want to protect your work from decompilation or just to make it as hard as it's possible to analyze, you might want to try it.