gmBasic is a code transformation engine that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help developers more easily produce cleaner and more correct upgrade results. Most recently, this work includes general improvements needed to automatically produce build-complete VB.NET and C# versions of a document/workflow management system comprised of 213K LOC and of a regional government license administration system comprised of 250K LOC. This distribution, Version 40.39, includes many enhancements; for example:
Powered by gmBasic, gmStudio is a platform for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest improvements and conventions in the gmBasic platform.
gmMetrics is a tool for reporting the content of system models generated by gmBasic. This includes Symbol Tables, References Reports, Definitions Reports, and Model Audits. gmMetrics is a console application written in C# using gmAPI. We maintain and enhance gmMetrics to keep it in sync with the model schema and to produce new reports.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
gmRTL is a sample runtime library that contains classes allowing for more readable translations. Learn more about gmRTL here.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
Large mature systems often contain symbols that are no longer used. These may be methods that are no longer called or variables and data structures that are no longer referenced by active logic. These unused symbols are often referred to as "dead code, dead wood, Cruft". Dead code make a system "smell bad" and a form of technical debt, and it can be difficult to identify and risky to remove. An Upgrade Project is an optimal time to deal with dead code because gmStudio can help you identify and remove it.
Learn how in this Support Statement: Unused Symbol Analysis and Reporting
gmBasic is a code transformation engine that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help developers more easily produce cleaner and more correct upgrade results. Most recently, this work includes general improvements needed to produce build-complete C# code for a Retail ERP system having 1.2M LOC organized into 73 inter-related VBPs, and to produce build-complete VB.NET code for a Construction Project Management System having 800K LOC organized into 31 inter-related VBPs. The release also includes a sophisticated new utility, gmGlobal, that can automate the process of identifying dead code. This major distribution, Version 40.34, includes many enhancements; for example:
Powered by gmBasic, gmStudio is a platform for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest improvements and conventions in the gmBasic platform.
gmMetrics is a tool for reporting the content of system models generated by gmBasic. This includes Symbol Tables, References Reports, Definitions Reports, and Model Audits. gmMetrics is a console application written in C# using gmAPI. We maintain and enhance gmMetrics to keep it in sync with the model schema and to produce new reports.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
gmRTL is a sample runtime library that contains classes allowing for more readable translations. Learn more about gmRTL here.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
gmBasic is a code transformation engine that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work includes general improvements needed to produce build-complete C# and VB.NET code based for several enterprise systems containing over 2M LOC organized into dozens of inter-related VBPs. This major distribution, Version 40.30, includes several enhancements:
Powered by gmBasic, gmStudio is a platform for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest improvements and conventions in the gmBasic platform.
gmMetrics is a tool for reporting the content of system models generated by gmBasic. This includes Symbol Tables, References Reports, Definitions Reports, and Model Audits. gmMetrics is a console application written in C# using gmAPI. We maintain and enhance gmMetrics to keep it in sync with the model schema and to produce new reports.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
gmRTL is a sample runtime library that contains classes allowing for more readable translations. gmRTL namespace and class structure conventions will replace the legacy RTL conventions in the next gmStudio release. The old conventions (MigrationSupport, MigrationSupportUI, etc.) will be deprecated, but still available as custom migration options. Learn more about gmRTL here.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work includes general improvements needed to produce build-complete C# code for a Construction ERP product. This system is 31 inter-related VB6 project components containing 820K LOC organized into 1,125 code files and supported by 46 external COM libraries. This distribution, Version 40.25, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmMetrics is a tool for reporting the content of system models generated by gmBasic. This includes Symbol Tables, References Reports, Definitions Reports, and Model Audits. gmMetrics is a console application written in C# using gmAPI. We maintain and enhance gmMetrics to keep it in sync with the model schema and to produce new reports.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
gmRTL is a sample runtime library that contains classes allowing for more readable translations. gmRTL namespace and class structure conventions will replace the legacy RTL conventions in the next gmStudio release. The old conventions (MigrationSupport, MigrationSupportUI, etc.) will be deprecated, but still available as custom migration options. Learn more about gmRTL here.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
I just had a customer ask me about the future of COM support on Windows. Here is how I responded
Someone mentioned they had heard the VB6 runtime will not be supported beyond Windows10 (2025?). I could not find any official word on that. But I know there is no support statement for VB6 on Windows 11 -- but that is not an official Windows release yet, so...
One thing: COM is a typically 32-bit technology and special steps are needed to work on 64-bit. On 64bit, which is what most Windows installations are running any more, COM must run in a 32-bit emulation. Maybe you have noticed VB6 COM references need to be to files in the SysWOW64 folder, not the System32 folder...
Bottom line, VB6 and COM may be officially supported by Microsoft, but they are not mainstream anymore. As time goes on, you are more likely to run into difficult issues with them; you will find yourself in troubled waters, in a boat by yourself without a paddle... And more importantly, all VB6 programmers will eventually leave the labor pool. Organizations still running VB6 will have no one to go to for help when they have technical problems. Organizations may choose to bear that risk and continue to put out VB6/COM compatibility fires as they come up, or they can upgrade their systems and join the much larger community of .NET/C# developers on a vital, well-supported platform.
To give you an idea about the level of interest in VB6 vs C# here are some relevant metrics:
Google Search (June 2021)
Search String | Results |
---|---|
"VB6 Programming" | 14,500 |
"C# Programming" | 2,270,000 |
"VB.NET Programming" | 175,000 |
GitHub (Jan 2022)
Search String (based on file extension) | Results |
---|---|
VBP https://github.com/search?q=extension%3Avbp&type=Code | 260,579 |
CSPROJ https://github.com/search?q=extension%3Acsproj&type=Code | 7,223,451 |
VBPROJ https://github.com/search?q=extension%3Avbproj&type=Code | 185,686 |
Here are some details on VB6 support from Microsoft.
https://docs.microsoft.com/en-us/previous-versions/visualstudio/visual-basic-6/visual-basic-6-support-policy
Support Statement for Visual Basic 6.0 |
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work includes a number of improvements providing special features that are helpful for real-world system modernization projects. This distribution, Version 40.18, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmMetrics is a tool for reporting the content of system models generated by gmBasic. This includes Symbol Tables, References Reports, Definitions Reports, and Model Audits. gmMetrics is a console application written in C# using gmAPI. We maintain and enhance gmMetrics to keep it in sync with the model schema and to produce new reports.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
gmRTL is a sample runtime library that contains classes allowing for more readable translations. gmRTL namespace and class structure conventions will replace the legacy RTL conventions in the next gmStudio release. The old conventions (MigrationSupport, MigrationSupportUI, etc.) will be deprecated, but still available as custom migration options. Learn more about gmRTL here.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work includes a number of improvements providing special features that are helpful for real-world system modernization projects. This distribution, Version 40.14, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmMetrics is a tool for reporting the content of system models generated by gmBasic. This includes Symbol Tables, References Reports, Definitions Reports, and Model Audits. gmMetrics is a console application written in C# using gmAPI. We maintain and enhance gmMetrics to keep it in sync with the model schema and to produce new reports. This distribution includes several enhancements:
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
gmRTL is a sample runtime library that contains classes allowing for more readable translations. gmRTL namespace and class structure conventions will replace the legacy RTL conventions in the next gmStudio release. The old conventions (MigrationSupport, MigrationSupportUI, etc.) will be deprecated, but still available as custom migration options. Learn more about gmRTL here.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work includes the general improvements needed to produce build-complete C# code for a Courier Management System. This application includes 5 VB6 Dlls coded as 300K LOC of VB6 and over 150 ASP pages containing 40K LOC or markup and over 100K LOC of client-side VBScript. This distribution, Version 40.09, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the samples here.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work includes the general improvements needed to produce build-complete C# code for a Metal Plating ERP system. This system is a single executable: 280K LOC organized into 135 code files supported by 28 COM libraries. This release also includes significant improvements to ASP processing. This distribution, Version 40.05, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions. Learn about the latest samples here
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work changes how the tool is extended to perform advanced upgrade analysis and transformation. This distribution, Version 40.03, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work included the general improvements needed to produce build-complete C# code for an Manufacturing Reporting System. This system is an ASP web site organized in 123 web page files that reference 26 #include files. The site also depends on 8 COM libraries. This distribution, Version 31.25, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work included the general improvements needed to produce build-complete C# code for an Enterprise Purchasing and Vendor Management system. This system is a single executable: 270K LOC organized into 508+ code files and 12,300 methods supported by 34 COM libraries. This distribution, Version 31.20, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions.
We published a collection of over 75 FAQ articles relating to our tools, techniques, and methodology. We will continue to grow and maintain this collection based on customer questions and related topics. We are happy to elaborate on these and your VB6/ASP Upgrade questions and concerns. Contact us anytime to discuss.
gmBasic is a code transformation tool that reads, interprets, and rewrites VB6/ASP/COM systems to one of the .NET languages (C# or VB.NET). Based on feedback from our clients and migration projects in the field, we are continuously improving gmBasic so as to help users more easily produce cleaner and more correct results. Most recently, this work included the general improvements needed to produce build-complete C# code for a commercial ERP system. This system is a single executable: 1.2M LOC organized into 850+ code files and 22,500 methods supported by 69 COM libraries. Now that's one massive VBP. This distribution, Version 31.14, includes several enhancements:
Powered by gmBasic, gmStudio is a development environment for analyzing code and developing custom VB6/ASP/COM to .NET upgrade solutions. We are continuously adding functionality to gmStudio and making it easier to use. This distribution includes several enhancements:
Powered by gmBasic, gmslAPI is a .NET API for automating our upgrade engine and accessing the semantic models produced by our unique linguistic compilation technology. gmslAPI also includes classes for managing complex upgrade rules and integrating with gmStudio. This API was updated to reflect the latest product improvements and conventions.
gmStudio ships with a collection of sample upgrade rules that can be used to add custom features to your upgrade solution. These XML documents and gmSL scripts are distributed as source that you may modify to fit your unique requirements. The sample rules were updated to reflect the latest product improvements and conventions. See also additions and changes in gmStudio Extensions Repository.
Great Migrations publishes a number of sample VB6/ASP upgrade solutions to illustrate the capabilities of gmStudio. The sample upgrade solutions and results were updated to reflect the latest product improvements and conventions.
We recently gathered up the Q&A articles we have written over the years and moved them to this location in the public section of this WIKI. The articles cover topics ranging from general tool use, to methodology concepts and practices, to common problems and solutions.
Check it out and Contact Us or post your comments if you want additional information. Enjoy!