How to Recover Source Code from CA-Clipper 5 Executables with Valkyrie 5
If you have lost the source code of your CA-Clipper 5 applications, or you want to reverse engineer some Clipper executables, you may be interested in Valkyrie 5, a Source Code Recovery System for CA-Clipper 5[^1^]. Valkyrie 5 is a decompiler that can recover the original source code from Clipper executables linked with various linkers, such as Blinker, Exospace, RTLink and others[^4^].
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In this article, we will show you how to download and use Valkyrie 5 to decompile your Clipper executables and get back your source code.
Step 1: Download Valkyrie 5
You can download Valkyrie 5 from VETUSWARE.COM[^1^], a website that hosts a large collection of abandonware software. The file name is V5.rar and it is about 274 KB in size. You will need a program like WinRAR or 7-Zip to extract the contents of the archive.
Step 2: Run Valkyrie 5
After extracting the archive, you will find a file called V5.EXE. This is the main executable of Valkyrie 5. You will need to run it from a DOS environment, such as DOSBox or a Windows command prompt. To run Valkyrie 5, simply type V5 followed by the name of the Clipper executable you want to decompile. For example:
Valkyrie 5 will then analyze the executable and try to recover the source code. Depending on the size and complexity of the executable, this may take some time. You will see some messages on the screen indicating the progress of the decompilation.
Step 3: View the Source Code
When Valkyrie 5 finishes decompiling the executable, it will create a subdirectory called VPP with the same name as the executable. For example, if you decompiled MYAPP.EXE, you will find a subdirectory called MYAPP.VPP. Inside this subdirectory, you will find several files with .PRG extensions. These are the recovered source code files of your Clipper application. You can open them with any text editor or Clipper IDE and view or modify them as you wish.
Valkyrie 5 is a powerful tool that can help you recover source code from CA-Clipper 5 executables. However, it is not perfect and it may not be able to decompile some executables or produce accurate source code in some cases. Therefore, you should always verify and test the recovered source code before using it for any purpose. Also, you should respect the intellectual property rights of the original authors of the executables and use Valkyrie 5 only for legitimate reasons.
What is CA-Clipper 5?
CA-Clipper 5 is a programming language and compiler for developing DOS-based applications. It is based on the xBase language and syntax, which originated from the popular dBase database management system. CA-Clipper 5 was released in 1990 by Computer Associates (CA) as an upgrade to the previous versions of Clipper. CA-Clipper 5 introduced many new features and enhancements, such as object-oriented programming, code blocks, arrays, memory variables, extended data types, and a native GUI library called LightLib. CA-Clipper 5 was widely used by developers and businesses for creating database applications, accounting systems, inventory management systems, and other types of software.
What is Valkyrie 5?
Valkyrie 5 is a Source Code Recovery System for CA-Clipper 5. It is a decompiler that can recover the original source code from Clipper executables linked with various linkers, such as Blinker, Exospace, RTLink and others. Valkyrie 5 was developed by CodeWorks and MythoLogics in 1994 and it was one of the first and most advanced decompilers for Clipper. Valkyrie 5 can handle executables compiled with Clipper versions from Summer '87 to 5.3. It can also handle executables that use third-party libraries, such as Class(y), FiveWin, Clip4Win, and others. Valkyrie 5 can recover the source code with high accuracy and fidelity, preserving the original variable names, comments, indentation, and structure of the code. 29c81ba772