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How to Run Compaq Visual Fortran on Windows 7 64-bit with Virtual Machines and Patches


How to Use Compaq Visual Fortran on Windows 7 64-bit




Compaq Visual Fortran (CVF) was a popular and powerful Fortran compiler and development environment for Windows that was developed by Compaq Computer Corporation in the late 1990s and early 2000s. It was based on the original Microsoft Fortran compiler and inherited many features from it, such as integration with Visual Studio, debugging tools, and graphical user interface (GUI) support. CVF was widely used by scientists, engineers, and programmers who needed to write high-performance numerical and scientific applications in Fortran, one of the oldest and most established programming languages for such purposes.




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However, CVF was discontinued in 2003 after Compaq was acquired by Hewlett-Packard (HP), and its successor, Intel Visual Fortran, was released. CVF was not compatible with newer versions of Windows, such as Windows 7 64-bit, which posed a problem for many users who wanted to continue using their existing CVF projects and code on modern systems. In this article, we will explore some of the challenges of installing and running CVF on Windows 7 64-bit, and some of the possible solutions and alternatives that can help you overcome them.


Installing Compaq Visual Fortran on Windows 7 64-bit




CVF was designed to run on 32-bit versions of Windows, such as Windows 95, 98, NT, 2000, and XP. It was not compatible with 64-bit versions of Windows, such as Windows 7 64-bit, which have different architectures and requirements. Trying to install CVF on Windows 7 64-bit will result in errors and failures, such as missing libraries, incompatible drivers, and unsupported features. However, there are some ways to work around these issues and make CVF work on Windows 7 64-bit, depending on your needs and preferences.


Using the setupx86.exe file from the CD and changing the directories




One possible solution is to use the setupx86.exe file from the CVF CD instead of the setup.exe file, which is intended for 32-bit systems. The setupx86.exe file is located in the X86 subdirectory of the CVF CD, and it can install CVF on a 64-bit system. However, you need to specify that the files should be put into the Program Files (x86) directory instead of the Program Files directory, which is reserved for 64-bit applications. You also need to change the directories for library, include, and other files within the CVF environment, by clicking on Tools > Options > Directories and pointing them to the Program Files (x86) directory. This method was reported to work by some users who managed to run CVF on Windows 7 64-bit without major problems.


Using a virtual machine or a dual boot system with Windows XP or earlier




Another possible solution is to use a virtual machine or a dual boot system with Windows XP or earlier, which are compatible with CVF. A virtual machine is a software that simulates a computer system within another computer system, allowing you to run different operating systems and applications without affecting your main system. A dual boot system is a configuration that allows you to choose between two different operating systems when you start your computer. Both methods require that you have a valid license and installation media for Windows XP or earlier, as well as enough disk space and memory to run them.


Using a compatibility mode or a patch




A third possible solution is to use a compatibility mode or a patch that can make CVF run on Windows 7 64-bit. A compatibility mode is a feature of Windows that allows you to run older applications that were designed for previous versions of Windows. You can access it by right-clicking on the CVF executable file, selecting Properties, and then choosing the Compatibility tab. There you can select the option to run the program in compatibility mode for Windows XP or earlier, and also adjust some settings such as display resolution and color mode. This method may work for some CVF applications, but not for all, and it may have some limitations and drawbacks.


A patch is a software update that can fix some bugs or add some features to an existing program. There are some patches available online that claim to make CVF work on Windows 7 64-bit, such as this one. However, these patches are not official or supported by Compaq or HP, and they may have some risks and side effects, such as modifying the registry, breaking the license agreement, or causing instability or security issues. Therefore, you should use them at your own risk and discretion, and make sure to backup your data and system before applying them.


Alternatives to Compaq Visual Fortran




If none of the above solutions work for you, or if you want to use a more modern and supported Fortran compiler and development environment, you may consider some alternatives to CVF. There are several options available, depending on your budget, preferences, and needs. Here are some of them:


Upgrading to Intel Visual Fortran or other modern Fortran compilers




The most natural and recommended alternative to CVF is Intel Visual Fortran (IVF), which is the successor of CVF after Intel acquired the Fortran compiler technology from Compaq in 2001. IVF is fully compatible with CVF, meaning that it can compile and run most CVF projects and code without any changes. IVF also supports newer versions of Windows, such as Windows 7 64-bit, as well as newer versions of Fortran standards, such as Fortran 2003 and 2008. IVF also offers many features and benefits that CVF does not have, such as integration with Visual Studio 2019*, support for GPUs and parallel computing, optimization for Intel architectures, debugging and profiling tools, libraries and frameworks, and more. IVF is a commercial product that requires a license fee, but it also offers a free trial version and a free community edition for non-commercial use.


Another option is to use other modern Fortran compilers that are available for Windows 7 64-bit. Some examples are:


CompilerDescriptionPrice


NAG Fortran CompilerA robust and highly tested Fortran compiler that supports industry standards and has extensive error checking capabilities.Commercial


Silverfrost FTN95A Fortran compiler that integrates with Visual Studio and supports Fortran 95, OpenMP*, CHECKMATE*, SDBG*, SLINK*, etc.Free for personal use; commercial for professional use


GFortranThe GNU Fortran compiler that is part of the GCC suite. It supports most of the Fortran standards and has many extensions.Free and open source


Using online Fortran compilers or cloud services




If you do not want to install any software on your system, or if you want to access your Fortran code from anywhere and any device, you may consider using online Fortran compilers or cloud services. These are web-based platforms that allow you to write, compile, run, and share Fortran code online without having to download or install anything. Some examples are:


PlatformDescription


OnlineGDBAn online IDE with a Fortran compiler that supports syntax highlighting, debugging, code formatting, etc.


myCompilerAn online IDE with a Fortran compiler that supports autocomplete, tags, multi-language support, etc.


OneCompilerAn online IDE with a Fortran compiler that supports code snippets, input/output files, etc.


Converting Fortran code to other languages or frameworks




A final option is to convert your Fortran code to other languages or frameworks that are more compatible with Windows 7 64-bit and have more support and features. This may require some effort and time, depending on the complexity and size of your code, but it may also offer some advantages, such as better performance, portability, readability, maintainability, etc. There are some tools and services that can help you with this task, such as:


Tool/ServiceDescription


f2pyA tool that can automatically generate Python wrappers for Fortran code, allowing you to call Fortran functions and subroutines from Python.


f2cA tool that can convert Fortran 77 code to C code, which can then be compiled by any C compiler.


fableA tool that can convert a subset of Fortran 90/95 code to C++ code, which can then be compiled by any C++ compiler.


Fortran-to-JuliaA service that can convert Fortran code to Julia code, which is a modern and high-performance language for scientific computing.


Conclusion




In this article, we have discussed how to use Compaq Visual Fortran on Windows 7 64-bit, which is a challenge for many users who want to continue using their existing CVF projects and code on modern systems. We have explored some of the possible solutions and alternatives that can help you overcome this challenge, such as:


  • Using the setupx86.exe file from the CVF CD and changing the directories



  • Using a virtual machine or a dual boot system with Windows XP or earlier



  • Using a compatibility mode or a patch



  • Upgrading to Intel Visual Fortran or other modern Fortran compilers



  • Using online Fortran compilers or cloud services



  • Converting Fortran code to other languages or frameworks



We hope that this article has been helpful and informative for you, and that you have found a solution or an alternative that suits your needs and preferences. If you have any questions, comments, or feedback, please feel free to share them with us in the comment section below. We would love to hear from you and learn from your experience. Thank you for reading!


FAQs




What is Compaq Visual Fortran?




Compaq Visual Fortran (CVF) was a popular and powerful Fortran compiler and development environment for Windows that was developed by Compaq Computer Corporation in the late 1990s and early 2000s. It was based on the original Microsoft Fortran compiler and inherited many features from it, such as integration with Visual Studio, debugging tools, and graphical user interface (GUI) support.


Why is Compaq Visual Fortran not compatible with Windows 7 64-bit?




CVF was designed to run on 32-bit versions of Windows, such as Windows 95, 98, NT, 2000, and XP. It was not compatible with 64-bit versions of Windows, such as Windows 7 64-bit, which have different architectures and requirements. Trying to install CVF on Windows 7 64-bit will result in errors and failures, such as missing libraries, incompatible drivers, and unsupported features.


How can I install Compaq Visual Fortran on Windows 7 64-bit?




There are some ways to work around the compatibility issues and make CVF work on Windows 7 64-bit, depending on your needs and preferences. Some of them are:


  • Using the setupx86.exe file from the CVF CD instead of the setup.exe file, and changing the directories for library, include, and other files within the CVF environment.



  • Using a virtual machine or a dual boot system with Windows XP or earlier, which are compatible with CVF.



  • Using a compatibility mode or a patch that can make CVF run on Windows 7 64-bit.



What are some alternatives to Compaq Visual Fortran?




If you want to use a more modern and supported Fortran compiler and development environment, you may consider some alternatives to CVF. Some of them are: dcd2dc6462


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