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Visual Basic Decompilers


Tool name: P32DASM
Rating: 5.0 (1 vote)
Author: DARKER                        
Website: http://progress-tools.x10.mx/p32dasm.html
Current version: 2.8
Last updated: May 24, 2011
Direct D/L link: http://progress-tools.x10.mx/p32dasm.zip
License type: Free
Description: P32Dasm is a Visual Basic 5.0/6.0 PCode + Native code Decompiler. It can generate String, Numbers, Objects, Import and Export function listing. There is also Jump calculator. For VB Native code executables are generated only MSVBVM, External calls and string references. Usefull for setting BPX, you don't need search in debugger where start some Command Button event. You can generate .map files, which you can import to DataRescue IDA (LoadMap plugin) or to Olly Debugger (MapConv plugin).
Also listed in: Disassemblers
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Tool name: DoDi's Visual Basic 3/4 Decompiler
Rating: 0.0 (0 votes)
Author: Dr. H.-P. Diettrich                        
Website: http://vbdis4.angelfire.com/
Current version: 3.67e *reloaded*
Last updated: December 1, 2008
Direct D/L link: http://vbdis4.angelfire.com/VBDIS3.67e_Reloaded_Rev3_DoDi_s_VB3Decompiler.7z
License type: Abandonware
Description: Attention the original program is anno 1997.
However it's the best VB3 decompiler out there.

Decompiled & recompile with VB6.
^- So it will also run on systems new than windows XP that don't have any win3.11 16-bit support(or emulator) on board

Features:
* beside the sourcecode
* some bugfixed and decompiling improvement
* support for decompiling 'VBGuard-protected' VB3-Apps
Also listed in: (Not listed in any other category)
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Tool name: RACEVB6
Rating: 0.0 (0 votes)
Author: Sarge                        
Website: http://www.racevb6.com
Current version: 4.4
Last updated: June 9, 2008
Direct D/L link: http://www.racevb6.com/RaceEx6_4_4.zip
License type: Free
Description: RACEVB6 is a Visual Basic 6 P-Code analyzer. RACEVB6 can be used to investigate Visual Basic 6 programs compiled to P-Code. RACEVB6 will display not only such typical information as Project data and Form/Control GUI data, but will also make available Procedures names and offsets, their accompanying P-Code opcodes, extract any Pictures or Images contined within the program, and many other pieces of "buried" data.
Also listed in: Decompilers
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Tool name: VB Decompiler
Rating: 0.0 (0 votes)
Author: GPcH Soft                        
Website: http://www.vb-decompiler.org
Current version: 8.2
Last updated: April 20, 2011
Direct D/L link: http://www.vb-decompiler.org/files/vb_decompiler_lite.zip
License type: Shareware
Description: VB Decompiler is decompiler for programs (EXE, DLL or OCX) written in Visual Basic 5.0/6.0. As you know, programs in Visual Basic can be compiled into interpreted p-code or into native code.

Since p-code consists of high-level commands, there is a real possibility to decompile it into the source code (of course, the names of variables, functions, etc. will not be decompiled). VB Decompiler restores many p-code instructions and although there is a long way to the generation of the source code that can be compiled, the decompiler will make analyzing the program algorithm much easier and partially restore its source code.

If a program was compiled into the native code, restoring the source code from machine instructions is not possible. But VB decompiler can help to analyze the program even in this situation as well. It contains a powerful disassembler that supports Pentium Pro commands including MMX and SSE. It allows you to disassemble all functions. There is also a code analyzer that searches for all API function calls and string references in the disassembled code and changes them into comments for analyzed strings. In general, VB Decompiler is an ideal tool for analyzing programs and it is perfect if you lose the source code and need to partially restore the project.
Also listed in: Decompilers
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Tool name: VBReFormer
Rating: 0.0 (0 votes)
Author: Sylvain Bruyere                        
Website: http://www.decompiler-vb.net/
Current version: v6.2 Free Edition
Last updated: November 3, 2014
Direct D/L link: http://download.decompiler-vb.net/setup_free.exe
License type: Shareware
Description: VBReFormer Free Edition is a limited edition of VBReFormer Professional Edition, a powerful set of recovery tools for Visual Basic 5 & 6 application.

Decompiler, disassembler, and design editor at the same time, VBReFormer is a must-have tool for companies and professionals who work with version 5 & 6 of Visual Basic.

VBReFormer disassemble all functions and methods in forms, controls, classes, and modules of Visual Basic application and try to recover the most complete Visual Basic source code than possible (if compiled with the native code option).

Furthermore, thanks to its integrated decompilation engine, VBReFormer perfoms a native decompilation from Native code to Visual Basic code, in the fullest extent possible.

Note: VBReFormer is not able to disassemble P-Code applications at the moment.

VBReFormer recovers UI meta information and resources of Visual Basic 5 & 6 application (forms, usercontrols, designers, pictures, etc.) and extracts these information into a Visual Basic project.

Even better, the integrated design editor of VBReFormer succeeds where others resources editors fail with Visual Basic applications with its ability to edit UI design of Visual Basic applications in a simple and easy way with no limitation of size, and with no need to recompile the application, working directly on its binary.
Also listed in: Decompilers, Disassemblers, PE Executable Editors, Resource Editors, Visual Basic Tools
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Tool name: Whiskey Kon Tequilla VB P-Code Debugger
Rating: 0.0 (0 votes)
Author: WKT Team                        
Website: N/A
Current version: 1.3e
Last updated: Around 2001
Direct D/L link: Locally archived copy
License type: Free
Description: Also known as "WKT Debugger".

At the time it showed up, the one and only P-Code disassembler / debugger mankind was able to use.

Before it, debugging of the P-Code (Runtime interpreted Pseudo-VB code) with ordinary disassemblers / debuggers was really pain in your neck. This one saved me a lot of time, and probably helped postpone my deportation to the psychiatric research facility.
Also listed in: Disassemblers, Visual Basic Debuggers
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