VB Decompiler Pro v9.2: How to Decompile and Modify Visual Basic Applications with Ease
VB Decompiler Pro v9.2: A Powerful Tool for Reverse Engineering Visual Basic Applications
Introduction
Visual Basic is an object-oriented programming language developed by Microsoft that allows developers to create Windows-based applications with graphical user interfaces (GUIs). Visual Basic applications can be compiled into executable files (EXE), dynamic link libraries (DLL), or Windows metadata files (WINMD) that can run on various platforms.
VB.Decompiler.Pro.v9.2.RETAIL.BY-1ST.INCL KEYGEN PATCH-FFF.softa
However, sometimes developers may lose or delete the original source code of their Visual Basic applications, or they may want to analyze or modify the code of third-party applications that they do not have access to. In such cases, they need a tool that can help them reverse engineer the compiled files and recover the source code as much as possible.
One of such tools is VB Decompiler Pro, a powerful and user-friendly software that can decompile any Visual Basic application into equivalent C# or intermediate language (IL) code. VB Decompiler Pro can also disassemble native code procedures, display string references and API calls, perform syntax highlighting and code formatting, export decompiled code to Visual Studio projects, and more.
In this article, we will explore what VB Decompiler Pro is, how it works, and how to use it effectively. We will also discuss what reverse engineering is, why it is useful and challenging, and what are some of the legal and ethical issues involved in it.
How to use VB Decompiler Pro v9.2
Installation and activation
To install VB Decompiler Pro v9.2, you need to download the setup file from the official website or from other trusted sources. The setup file is about 6 MB in size and does not require any additional software or libraries to run. You can choose between a standard installation or a portable installation that does not modify your system registry.
After installing VB Decompiler Pro, you need to activate it with a valid license key. You can purchase a license key from the official website or from other authorized resellers. The price of a license key depends on the number of users and computers you want to use it on. A single-user license costs $99 USD, while a site license for unlimited users costs $999 USD.
To activate VB Decompiler Pro, you need to run the program as an administrator and enter your license key in the registration window that appears when you launch it for the first time. Alternatively, you can use a keygen program that generates valid license keys for you. However, using a keygen program is illegal and risky, as it may contain malware or viruses that can harm your computer or compromise your data.
One example of a keygen program for VB Decompiler Pro v9.2 is "VB.Dec ompiler.Pro.v9.2.RETAIL.BY-1ST.INCL KEYGEN PATCH-FFF.softa", which is a file name that contains the setup file, the keygen program, and a patch program that modifies the executable file of VB Decompiler Pro to bypass the registration check. This file name is also the topic of this article, as requested by the user.
However, we do not recommend using this file or any other similar files, as they are likely to be infected with malware or viruses that can damage your computer or steal your data. Moreover, using a keygen program or a patch program is a violation of the software license agreement and the intellectual property rights of the developers of VB Decompiler Pro. Therefore, you should always use a legitimate license key to activate VB Decompiler Pro and support its development.
Main features and interface
VB Decompiler Pro has many features that make it a powerful and versatile tool for reverse engineering Visual Basic applications. Some of the main features are:
It can decompile any Visual Basic application (EXE, DLL, or WINMD) into equivalent C# or IL code, regardless of the version of Visual Basic used to create it (from 5.0 to 14.0).
It can disassemble native code procedures (such as those written in assembly language or C++) into assembly instructions, and display them in a separate window with syntax highlighting and comments.
It can show all the string references and API calls in the decompiled code, and allow you to search for them using regular expressions or filters.
It can perform code formatting and indentation, and apply various color schemes and fonts to the decompiled code.
It can export the decompiled code to Visual Studio projects, text files, HTML files, or RTF files, with or without comments.
It can save the decompiled code as a VB Decompiler project file (VBD), which can be opened and modified later.
It can compare two VB Decompiler project files (VBD) and highlight the differences between them.
It can load and analyze P-Code applications (such as those created with Visual Basic for DOS or Visual Basic 1.0 for Windows) and show their P-Code instructions and operands.
It can load and analyze .NET applications (such as those created with Visual Basic .NET or C#) and show their metadata, assemblies, modules, classes, methods, fields, properties, events, attributes, and resources.
The interface of VB Decompiler Pro is simple and intuitive, consisting of a main window and several sub-windows that can be arranged according to your preference. The main window shows the decompiled code of the selected Visual Basic application, with syntax highlighting and comments. The sub-windows show various information and options related to the decompiled code, such as:
The Project Explorer window shows the structure of the Visual Basic application, including its forms, modules, classes, methods, variables, constants, enums, types, etc. You can expand or collapse each node in the tree view, and double-click on any node to jump to its corresponding code in the main window.
The Native Code window shows the disassembled native code procedures of the Visual Basic application, if any. You can switch between different modes of display (hexadecimal, decimal, binary, or ASCII), and copy or export the native code to a text file.
The Strings window shows all the string references in the decompiled code, sorted alphabetically or by occurrence. You can search for a specific string using regular expressions or filters, and double-click on any string to jump to its corresponding code in the main window.
The API Calls window shows all the API calls in the decompiled code, sorted alphabetically or by occurrence. You can search for a specific API call using regular expressions or filters, and double-click on any API call to jump to its corresponding code in the main window.
The Options window allows you to customize various settings of VB Decompiler Pro, such as language, color scheme , font, code formatting, decompilation mode, export options, etc. You can also check for updates, view the license information, and access the help file from this window.
The Log window shows the status and progress of the decompilation process, as well as any errors or warnings that may occur. You can clear, copy, or save the log to a text file from this window.
The following screenshot shows an example of the interface of VB Decompiler Pro v9.2, with a Visual Basic application loaded and decompiled:
Decompiling a Visual Basic application
To decompile a Visual Basic application with VB Decompiler Pro, you need to follow these steps:
Run VB Decompiler Pro as an administrator and activate it with a valid license key, if you have not done so already.
Click on the "Open file" button on the toolbar or select "File -> Open file" from the menu. A dialog box will appear, allowing you to browse and select the Visual Basic application file (EXE, DLL, or WINMD) that you want to decompile. You can also drag and drop the file into the main window of VB Decompiler Pro.
Wait for VB Decompiler Pro to load and analyze the file. Depending on the size and complexity of the file, this may take a few seconds or minutes. You can see the progress and status of the analysis in the Log window.
When the analysis is complete, VB Decompiler Pro will display the decompiled code of the Visual Basic application in the main window, with syntax highlighting and comments. You can also see the structure of the application in the Project Explorer window, and other information and options in the sub-windows.
The following screenshot shows an example of a Visual Basic application (Calculator.exe) decompiled by VB Decompiler Pro v9.2:
Analyzing and modifying the decompiled code
After decompiling a Visual Basic application with VB Decompiler Pro, you can analyze and modify the decompiled code according to your needs and preferences. Some of the things you can do are:
You can navigate through the decompiled code by using the scroll bar, the arrow keys, or the mouse wheel. You can also use the "Find" function (Ctrl+F) to search for a specific word or phrase in the code.
You can jump to any part of the code by double-clicking on a node in the Project Explorer window, a string in the Strings window, or an API call in the API Calls window. You can also use bookmarks (Ctrl+B) to mark and return to important locations in the code.
You can edit any part of the code by selecting it and typing over it. You can also use keyboard shortcuts (Ctrl+X, Ctrl+C, Ctrl+V) or right-click options (Cut, Copy, Paste) to manipulate the code. However, be careful when editing the code, as it may affect its functionality or cause errors.
You can format and indent the code by using the "Format code" button on the toolbar or selecting "Edit -> Format code" from the menu. You can also customize the code formatting settings in the Options window.
You can apply different color schemes and fonts to the code by using the "Color scheme" and "Font" buttons on the toolbar or selecting "View -> Color scheme" and "View -> Font" from the menu. You can also customize the color scheme and font settings in the Options window.
You can comment or uncomment any part of the code by using the "Comment" and "Uncomment" buttons on the toolbar or selecting "Edit -> Comment" and "Edit -> Uncomment" from the menu. You can also use keyboard shortcuts (Ctrl+K, Ctrl+U) to comment or uncomment the code.
You can insert a new line, a new procedure, or a new class in the code by using the "New line", "New procedure", and "New class" buttons on the toolbar or selecting "Edit -> New line", "Edit -> New procedure", and "Edit -> New class" from the menu. You can also use keyboard shortcuts (Ctrl+N, Ctrl+P, Ctrl+C) to insert a new line, a new procedure, or a new class in the code.
The following screenshot shows an example of editing and formatting the decompiled code of Calculator.exe with VB Decompiler Pro v9.2:
Exporting and saving the decompiled code
After analyzing and modifying the decompiled code with VB Decompiler Pro, you can export and save it in various formats and locations. Some of the options you have are:
You can export the decompiled code to a Visual Studio project by using the "Export to VS project" button on the toolbar or selecting "File -> Export to VS project" from the menu. A dialog box will appear, allowing you to choose the destination folder, the project name, and the language (C# or IL) for the exported project. VB Decompiler Pro will create a Visual Studio project file (.csproj or .ilproj) and a source code file (.cs or .il) for each form, module, or class in the decompiled code.
You can export the decompiled code to a text file by using the "Export to text file" button on the toolbar or selecting "File -> Export to text file" from the menu. A dialog box will appear, allowing you to choose the destination folder, the file name, and whether to include comments in the exported file. VB Decompiler Pro will create a text file (.txt) with all the decompiled code in it.
You can export the decompiled code to an HTML file by using the "Export to HTML file" button on the toolbar or selecting "File -> Export to HTML file" from the menu. A dialog box will appear, allowing you to choose the destination folder, the file name, and whether to include comments and syntax highlighting in the exported file. VB Decompiler Pro will create an HTML file (.html) with all the decompiled code in it, formatted with HTML tags and CSS styles.
You can export the decompiled code to an RTF file by using the "Export to RTF file" button on the toolbar or selecting "File -> Export to RTF file" from the menu. A dialog box will appear, allowing you to choose the destination folder, the file name, and whether to include comments and syntax highlighting in the exported file. VB Decompiler Pro will create an RTF file (.rtf) with all the decompiled code in it, formatted with RTF tags and colors.
You can save the decompiled code as a VB Decompiler project file by using the "Save project" button on the toolbar or selecting "File -> Save project" from the menu. A dialog box will appear, allowing you to choose the destination folder and the file name for the project file. VB Decompiler Pro will create a VB Decompiler project file (.vbd) that contains all the information and settings of the decompiled code, and can be opened and modified later.
The following screenshot shows an example of exporting the decompiled code of Calculator.exe to a Visual Studio project with VB Decompiler Pro v9.2:
Conclusion
Summary of the main points
In this article, we have learned what VB Decompiler Pro is, how it works, and how to use it effectively. We have also discussed what reverse engineering is, why it is useful and challenging, and what are some of the legal and ethical issues involved in it.
VB Decompiler Pro is a powerful and user-friendly software that can decompile any Visual Basic application into equivalent C# or IL code. It can also disassemble native code procedures, display string references and API calls, perform syntax highlighting and code formatting, export decompiled code to Visual Studio projects, and more.
Reverse engineering is the process of analyzing a system or a product to understand its structure, function, or behavior, and to create a new or improved version of it. Reverse engineering Visual Basic applications can be beneficial for various purposes, such as recovering lost source code, debugging or testing applications, enhancing or modifying applications, learning from other developers' code, or creating compatible or interoperable products.
However, reverse engineering Visual Basic applications can also be challenging and risky, as it may involve technical difficulties, legal restrictions, ethical dilemmas, or malicious intentions. Reverse engineering Visual Basic applications may require advanced skills and tools, as well as a lot of time and effort. Reverse engineering Visual Basic applications may also violate the software license agreement or the intellectual property rights of the original developers, or expose sensitive or confidential information. Reverse engineering Visual Basic applications may also be used for harmful purposes, such as stealing or copying code, creating malware or viruses, breaking security or encryption mechanisms, or exploiting vulnerabilities or bugs.
Recommendations and tips
If you want to use VB Decompiler Pro for reverse engineering Visual Basic applications, we recommend that you follow these tips:
Always use a legitimate license key to activate VB Decompiler Pro and support its development. Do not use keygen programs or patch programs that are illegal and risky.
Always respect the software license agreement and the intellectual property rights of the original developers of the Visual Basic applications you want to reverse engineer. Do not reverse engineer Visual Basic applications that are protected by law or by encryption.
Always have a valid reason and a good intention for reverse engineering Visual Basic applications. Do not reverse engineer Visual Basic applications for malicious purposes or without permission.
Always backup your original files before decompiling them with VB Decompiler Pro. Do not overwrite or delete your original files unless you are sure you do not need them anymore.
Always check and test your decompiled code before using it for any purpose. Do not assume that your decompiled code is error-free or functional.
Always cite your sources and give credit to the original developers when using their decompiled code for any purpose. Do not claim their decompiled code as your own or plagiarize their work.
References and resources
If you want to learn more about VB Decompiler Pro, reverse engineering, or Visual Basic, you can check out some of the following resources that may help you learn more about reverse engineering Visual Basic applications: - [Reverse Engineering 5: Reversing Visual Basic Udemy](^4^): This is an online course that teaches you how to decompile and debug Visual Basic programs using xdbg, VB Decompiler, and P-Code Debugger. You will learn how to remove nag screens, patch programs, create keygens, reverse serial keys, and more. - [Database First - EF6 Microsoft Learn](^5^): This is an article that shows you how to use Entity Framework to reverse engineer a model from an existing database. The model is stored in an EDMX file and can be viewed and edited in the Entity Framework Designer. The classes that you interact with in your application are automatically generated from the EDMX file. - [Reverse engineering a Visual Basic p-code binary](^6^): This is a question and answer thread on Stack Exchange that discusses how to analyze p-code, the intermediate code that was used in Visual Basic before .NET. You will find some links to tools and papers that can help you understand and manipulate p-code. - [Visual Basic Decompiler - VB Decompiler]: This is the official website of VB Decompiler Pro, where you can download the latest version of the software, purchase a license key, read the documentation, watch the video tutorials, and contact the support team. - [Visual Basic Essentials - Techotopia]: This is a free online book that covers the basics of Visual Basic programming, from the syntax and data types to the controls and events. You will learn how to create simple Windows applications with Visual Basic using Visual Studio. - [Reverse Engineering for Beginners]: This is a free online book that teaches you how to reverse engineer software and hardware systems, from the assembly language and disassemblers to the debugging and patching techniques. You will learn how to analyze various types of binaries, such as Windows PE, Linux ELF, and Android DEX. FAQs
What is VB Decompiler Pro?
VB Decompiler Pro is a software that can decompile any Visual Basic application into equivalent C# or IL code. It can also disassemble native code procedures, display string references and API calls, perform s