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Ezekiel Phillips
Ezekiel Phillips

Vb Decompiler Pro 10 83k | Friends of Saint Alp


VB Decompiler Pro 10 83k: What Is It and Why You Need It




If you are a Visual Basic developer who works with older versions of your applications (Visual Basic 5 or 6), you may have encountered situations where you need to recover or modify your source code from compiled files (.exe, .dll, .ocx). For example, you may have lost your original source code due to hardware failure or human error; you may need to fix some bugs or errors in your application; you may want to improve your code quality or performance; or you may want to protect your code from reverse engineering or hacking.




vb decompiler pro 10 83k



In these cases, you need a powerful and reliable tool that can help you decompile and analyze your Visual Basic applications. That tool is VB Decompiler Pro, a professional decompiler for Visual Basic applications that can decompile forms, p-code (pseudo-code), native code (machine code), disassemble native code procedures (with power Pentium Pro disassembler), recover UI meta information and resources (forms, usercontrols, designers, pictures), edit UI design (with integrated design editor), save decompiled data to single DB file or project file (.vbp), syntax coloring in decompiled code (with support of all Visual Basic statements), string reference list (with search engine), fast decompilation, and much more.


VB Decompiler Pro is the best solution for decompiling and analyzing Visual Basic applications. It can handle any kind of Visual Basic application, whether it is compiled with native code, p-code, or mixed code. It can recover the most complete source code possible, even if the application is obfuscated or protected. It can also help you edit the UI design of your application without recompiling it. It is fast, easy to use, and compatible with Windows 11 and Windows 10.


In this article, we will show you how VB Decompiler Pro works, how to use it, and what benefits it can bring to you as a Visual Basic developer. Let's get started!


How VB Decompiler Pro Works




VB Decompiler Pro is a decompiler for Visual Basic applications that can decompile forms, p-code (pseudo-code), native code (machine code), disassemble native code procedures (with power Pentium Pro disassembler), recover UI meta information and resources (forms, usercontrols, designers, pictures), edit UI design (with integrated design editor), save decompiled data to single DB file or project file (.vbp), syntax coloring in decompiled code (with support of all Visual Basic statements), string reference list (with search engine), fast decompilation, and much more.


VB Decompiler Pro can perform different types of decompilation depending on the type of Visual Basic application you want to decompile. Here are the main types of decompilation that VB Decompiler Pro can do:


Decompiling Forms, P-Code, Native Code




VB Decompiler Pro can decompile different types of Visual Basic applications and recover the most complete source code possible. Here are the supported types of Visual Basic applications:


  • Forms: VB Decompiler Pro can decompile forms from any Visual Basic application (.exe, .dll, .ocx) and show the original form layout and properties. It can also recover the form's code if it is compiled with p-code or mixed code.



  • P-Code: VB Decompiler Pro can decompile p-code (pseudo-code) from any Visual Basic application (.exe, .dll, .ocx) and show the original source code with syntax coloring. P-code is a high-level representation of Visual Basic commands that is easier to read and understand than native code.



  • Native Code: VB Decompiler Pro can decompile native code (machine code) from any Visual Basic application (.exe, .dll, .ocx) and try to recover the original source code with syntax coloring. Native code is a low-level representation of Visual Basic commands that is harder to read and understand than p-code. VB Decompiler Pro uses a powerful Pentium Pro disassembler and a sophisticated algorithm to decode most assembler instructions to most likely VB commands.



VB Decompiler Pro can handle any kind of Visual Basic application, whether it is compiled with native code, p-code, or mixed code. Mixed code is a combination of native code and p-code in the same application. VB Decompiler Pro can detect the type of code in each procedure and decompile it accordingly.


Disassembling Native Code Procedures




VB Decompiler Pro can disassemble native code procedures from any Visual Basic application (.exe, .dll, .ocx) and try to decode most assembler instructions to most likely VB commands. This feature is useful for analyzing native code procedures that are not fully decompiled by VB Decompiler Pro.


VB Decompiler Pro uses a powerful Pentium Pro disassembler that can disassemble any 32-bit or 64-bit x86 instruction set. It also uses a sophisticated algorithm that tries to match each assembler instruction with a corresponding VB command based on the context and the operands. For example, if an assembler instruction moves a value from one register to another, VB Decompiler Pro will try to find out what kind of value it is (integer, string, object, etc.) and what kind of operation it performs (assignment, addition, subtraction, etc.). Then it will try to generate a VB command that does the same thing.


VB Decompiler Pro can also show the comments for each assembler instruction that explain what it does and how it relates to the VB command. For example, if an assembler instruction calls a function from a DLL file, VB Decompiler Pro will show the name of the DLL file and the function name in the comment.


Recovering UI Meta Information and Resources




VB Decompiler Pro can recover UI meta information and resources from any Visual Basic application (.exe, .dll, .ocx) and show them in a separate tab. This feature is useful for restoring the original UI design and appearance of your Visual Basic application.


VB Decompiler Pro can recover the following types of UI meta information and resources:


  • Forms: VB Decompiler Pro can recover the form layout and properties from any Visual Basic application (.exe, .dll, .ocx) and show them in a graphical form viewer. It can also recover the form's code if it is compiled with p-code or mixed code.



  • UserControls: VB Decompiler Pro can recover the usercontrol layout and properties from any Visual Basic application (.exe, .dll, .ocx) and show them in a graphical usercontrol viewer. It can also recover the usercontrol's code if it is compiled with p-code or mixed code.



  • Designers: VB Decompiler Pro can recover the designer layout and properties from any Visual Basic application (.exe, .dll, .ocx) and show them in a graphical designer viewer. It can also recover the designer's code if it is compiled with p-code or mixed code.



  • Pictures: VB Decompiler Pro can recover the pictures from any Visual Basic application (.exe, .dll, .ocx) and show them in a picture viewer. It can also save the pictures to disk in various formats (bmp, jpg, png, etc.).



  • Icons: VB Decompiler Pro can recover the icons from any Visual Basic application (.exe, .dll, .ocx) and show them in an icon viewer. It can also save the icons to disk in various formats (ico, bmp, jpg, png, etc.).



  • Cursors: VB Decompiler Pro can recover the cursors from any Visual Basic application (.exe, .dll, .ocx) and show them in a cursor viewer. It can also save the cursors to disk in various formats (cur, bmp, jpg, png, etc.).



  • Strings: VB Decompiler Pro can recover the strings from any Visual Basic application (.exe, .dll, .ocx) and show them in a string viewer. It can also save the strings to disk in various formats (txt, csv, xml, etc.).



  • Menus: VB Decompiler Pro can recover the menus from any Visual Basic application (.exe, .dll, .ocx) and show them in a menu viewer. It can also save the menus to disk in various formats (txt, csv, xml, etc.).



  • Accelerators: VB Decompiler Pro can recover the accelerators from any Visual Basic application (.exe, .dll, .ocx) and show them in an accelerator viewer. It can also save the accelerators to disk in various formats (txt, csv, xml, etc.).



  • Version Information: VB Decompiler Pro can recover the version information from any Visual Basic application (.exe, .dll, .ocx) and show it in a version information viewer. It can also save the version information to disk in various formats (txt, csv, xml, etc.).



Editing UI Design




VB Decompiler Pro can edit UI design of any Visual Basic application (.exe, .dll, .ocx) in a simple and easy way with no limitation of size and no need to recompile the application. This feature is useful for modifying the UI design and appearance of your Visual Basic application.


VB Decompiler Pro can edit UI design of the following types of Visual Basic applications:


  • Forms: VB Decompiler Pro can edit the form layout and properties of any Visual Basic application (.exe, .dll, .ocx) in a graphical form editor. You can drag and drop controls, resize and align them, change their properties, etc. You can also edit the form's code if it is compiled with p-code or mixed code.



  • UserControls: VB Decompiler Pro can edit the usercontrol layout and properties of any Visual Basic application (.exe, .dll, .ocx) in a graphical usercontrol editor. You can drag and drop controls, resize and align them, change their properties, etc. You can also edit the usercontrol's code if it is compiled with p-code or mixed code.



  • Designers: VB Decompiler Pro can edit the designer layout and properties of any Visual Basic application (.exe, .dll, .ocx) in a graphical designer editor. You can drag and drop controls, resize and align them, change their properties, etc. You can also edit the designer's code if it is compiled with p-code or mixed code.



VB Decompiler Pro can edit UI design of any Visual Basic application without recompiling it. This means that you can modify the UI design of your application without affecting its functionality or performance. You can also save the edited UI design to disk in various formats (bmp, jpg, png, etc.).


How to Use VB Decompiler Pro




Now that you know how VB Decompiler Pro works, let's see how to use it to decompile and analyze a Visual Basic application. In this section, we will provide a step-by-step guide on how to use VB Decompiler Pro to decompile and analyze a sample Visual Basic application. We will also include screenshots and examples to help you follow along.


The sample Visual Basic application that we will use is called Calculator.exe. It is a simple calculator application that can perform basic arithmetic operations. It is compiled with native code and has a form with some buttons and text boxes. You can download the sample application from here.


Downloading and Installing VB Decompiler Pro




The first step is to download and install VB Decompiler Pro on your Windows 11 or Windows 10 computer. Here are the steps to do so:


  • Go to the official website of VB Decompiler Pro at https://www.vb-decompiler.org/.



  • Click on the Download button at the top right corner of the website.



  • Choose the version of VB Decompiler Pro that suits your needs. There are two versions available: LITE and PRO. The LITE version is free but has some limitations in features and functions. The PRO version is paid but has all the features and functions available. For this guide, we will use the PRO version.



  • Click on the Download Now button under the PRO version.



  • Save the file vbdpro.zip to your computer.



  • Extract the file vbdpro.zip to a folder of your choice.



  • Run the file vbdpro.exe to start the installation process.



  • Follow the instructions on the screen to complete the installation process.



  • Launch VB Decompiler Pro from your desktop or start menu.



The system requirements for VB Decompiler Pro are as follows:


  • Operating System: Windows 11 or Windows 10 (32-bit or 64-bit).



  • CPU: Pentium II or higher.



  • RAM: 256 MB or more.



  • Disk Space: 50 MB or more.



  • Internet Connection: Required for activation and updates.



Opening a Visual Basic Application




The next step is to open a Visual Basic application in VB Decompiler Pro. Here are the steps to do so:


  • In VB Decompiler Pro, click on the File menu at the top left corner of the window and select Open File.



  • Browse to the folder where you saved the sample application Calculator.exe and select it.



  • Click on the Open button to open the sample application in VB Decompiler Pro.



VB Decompiler Pro can open any Visual Basic application (.exe, .dll, .ocx) that is compiled with native code, p-code, or mixed code. It can also open any Visual Basic project file (.vbp) that is saved with VB Decompiler Pro. The supported file formats and extensions are as follows:


File FormatExtension


Visual Basic Application.exe, .dll, .ocx


Visual Basic Project File.vbp


Choosing a Decompilation Mode




The next step is to choose a decompilation mode in VB Decompiler Pro. Here are the steps to do so:


  • In VB Decompiler Pro, click on the Options menu at the top of the window and select Decompilation Mode.



  • Choose one of the available options from the drop-down list. The available options are as follows:



  • P-Code + Native Code (Default): This option will decompile both p-code and native code in the Visual Basic application. It will try to recover the most complete source code possible from both types of code. This is the recommended option for most cases.



  • P-Code Only: This option will decompile only p-code in the Visual Basic application. It will ignore any native code in the application. This option is useful for applications that are compiled with p-code only or mixed code with very little native code.



  • Native Code Only: This option will decompile only native code in the Visual Basic application. It will ignore any p-code in the application. This option is useful for applications that are compiled with native code only or mixed code with very little p-code.



  • No Decompilation (Disassembler Only): This option will disable decompilation and show only disassembled native code in the Visual Basic application. It will not try to decode any assembler instructions to VB commands. This option is useful for advanced users who want to analyze native code procedures in detail.



  • Click on the OK button to apply your choice.



VB Decompiler Pro can decompile any type of Visual Basic application, whether it is compiled with native code, p-code, or mixed code. You can choose a decompilation mode that suits your needs and preferences. You can also change the decompilation mode at any time during the decompilation process.


Viewing the Decompiled Code




The next step is to view the decompiled code in VB Decompiler Pro. Here are the steps to do so:


  • In VB Decompiler Pro, you will see a tree view on the left side of the window that shows the structure of the Visual Basic application. You can expand or collapse each node to see its contents.



  • Select a node that you want to view its decompiled code. For example, select MainForm.frm (Form) under User Forms.



  • You will see the decompiled code on the right side of the window in a tabbed view. You can switch between different tabs to see different types of information, such as Code Viewer, Design Viewer, P-Code Viewer, N-Code Viewer, etc.



  • In the Code Viewer tab, you will see the decompiled source code of the selected node with syntax coloring. Syntax coloring is a feature that highlights different parts of the code with different colors to make it easier to read and understand. For example, keywords are blue, strings are green, comments are gray, etc. You can also see the line numbers and the indentation of the code.



  • In the Code Viewer tab, you can also use the following features and functions to enhance your decompilation experience:



  • String Reference List: This feature shows a list of all the strings that are used in the decompiled code. You can click on any string to jump to its location in the code. You can also use the search engine to find any string that you want.



  • Search Engine: This feature allows you to search for any text that you want in the decompiled code. You can use various options to refine your search, such as case sensitivity, whole words, regular expressions, etc. You can also use the keyboard shortcuts Ctrl+F and F3 to perform and repeat your search.



  • Copy and Paste: This feature allows you to copy and paste any part of the decompiled code to another application or file. You can use the keyboard shortcuts Ctrl+C and Ctrl+V to perform this action.



  • Print: This feature allows you to print the decompiled code to a printer or a file. You can use the keyboard shortcut Ctrl+P to perform this action.



VB Decompiler Pro provides a powerful and user-friendly code viewer that allows you to view the decompiled code of any Visual Basic application in a clear and organized way. You can also use various features and functions to enhance your decompilation experience.


Editing the UI Design




The next step is to edit the UI design of the Visual Basic application in VB Decompiler Pro. Here are the steps to do so:


  • In VB Decompiler Pro, select a node that you want to edit its UI design. For example, select MainForm.frm (Form) under User Forms.



  • In the tabbed view on the right side of the window, switch to the Design Viewer tab. You will see the UI design of the selected node in a graphical design editor.



  • In the Design Viewer tab, you can use the following features and functions to edit the UI design of the selected node:



  • Drag and Drop: This feature allows you to move any control on the UI design by dragging and dropping it with your mouse. You can also use the arrow keys on your keyboard to move any control by one pixel.



  • Resizing: This feature allows you to resize any control on the UI design by dragging its edges or corners with your mouse. You can also use the keyboard shortcuts Ctrl+Up, Ctrl+Down, Ctrl+Left, and Ctrl+Right to resize any control by one pixel.



Alignment: This feature allows you to align any control on the UI design by using the alignment buttons on the toolbar. You can also use the keyboard shortcuts Ctrl+L, Ctrl+R, Ctrl+T, and Ctrl+B to align any


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