retain functionality original source code

1. Stunnix Perl-Obfus, 1 developer license
Pm) into highly mangled and obfuscated form, making it extermely difficult to study, analyse, reuse and re-work for competitors or customers, while fully retaining functionality of the original source code. It's not a compiler to machine code - the obufscated form will still be the usual perl source code, thus it will work on all platforms the original source worked on.
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Platform: Platform independent
Vendor: Stunnix

4. OLEDB Direct Components Suite with source code
These interfaces support the amount of DBMS functionality appropriate to the data store, enabling it to share its data. To take advantage of the benefits of database technology, such as declarative queries, transactions, and security, businesses have traditionally had to move the data from its original containing system into some type of database management system (DBMS).
Details Download trial (Demo: 2 MB) Buy now ($350.00) Find similar
Platform: Windows 95, Windows NT, Windows 2000, Windows XP, Windows 98, Windows ME
Vendor: Viatcheslav Vassiliev

6. Pascal Analyzer
Pascal Analyzer, or PAL for short, is a development tool that measures, checks, and documents your Delphi or Borland Pascal source code. Alone or combined with each other, these reports will help you retain control over your programs not only during their development but throughout their entire lifetime.
Details Download trial (Demo: 1.4 MB) Buy now ($139.00) Find similar
Platform: Windows 95, Windows NT, Windows 2000, Windows XP, Windows 98, Windows ME
Vendor: Peganza

7. Decompiler for FoxPro 2.0
Fxp20Prg is a decompiler for restoring lost or damaged source code from FoxPro 2.0 executables or compiled modules. Fxp20Prg reconstructs source code which is functionally the same as the original, including the names of variables and procedures.
Details Download trial (Demo: 55 KB) Buy now ($70.00) Find similar
Platform: Windows 3.1x, Windows 95, MS DOS, Windows 98, Windows ME
Vendor: Alexander Lobanov

9. VB.Net to C# Converter
VBConversions' VB.Net to C# Converter is a source code to source code converter. Your code maintains its original readability and flavor (including line and inline comments), Reliability is very good, over 99% accuracy in most tests.
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Vendor: VBConversions

11. JTipOfTheDay Source Code
Swing Components. JTipOfTheDay represents the easiest way for you to implement Tip Of The Day functionality in your Java Swing applications.
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Vendor: Simon Jewell

12. General Ledger (with source code)
GL (WITH CODE) is a General Ledger Utility which is written 100% in Microsoft Access format (a popular utilities). SOME OPTIONS CAN HAVE CHANGED FUNCTIONALITY! MAJOR FEATURES OF GL (WITH CODE) INCLUDE: GL (WITH CODE) is not just another program.
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Platform: Windows 95, Windows NT, Windows 2000, Windows XP, Windows 98, Windows ME, Windows Server 2003
Vendor: finasoft

13. JTipOfTheDay
Swing Components. JTipOfTheDay represents the easiest way for you to implement Tip Of The Day functionality in your Java Swing applications. Source code is also available from our website, for further customization of the component.
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Vendor: Simon Jewell

14. Visual Comparer (personal)
Visual Comparer is a software utility with its main functionality being comparison of source code containing text files. Its use is indisputable as software engineers are always in the need to compare and synchronize various versions of the source code.
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Platform: Windows 95, Windows NT, Windows 2000, Windows XP, Windows 98, Windows ME
Vendor: Nikeware