Migrating from VB6 to .NET: 5 Key Reasons to Choose C#

Migrating from VB6 to .NET: 5 Key Reasons to Choose C#

By Joe Rafanelli | Published on December 5th, 2025 |

For decades, Visual Basic 6.0 (VB6) was the workhorse of enterprise software. It was rapid, intuitive, and built applications that defined an era of computing. However, in the current technology landscape, maintaining VB6 applications is akin to keeping a vintage car running without spare parts—costly, risky, and increasingly difficult.

When organizations decide to bite the bullet and migrate to the .NET ecosystem, they face a pivotal choice: Should we stick to the familiar syntax of VB.NET, or make the leap to C#?

While VB.NET offers a syntactical safety blanket, C# is the strategic choice for longevity and innovation. Here are 5 key reasons why migrating your legacy VB6 code to C# is the best move for your business.

1. Microsoft’s “First-Class” Language Status

The most compelling reason to choose C# is the direction of the wind at Microsoft. C# is the flagship language of the .NET ecosystem.

While Microsoft supports VB.NET, they have explicitly stated that it is in a “stabilization” phase. This means that while C# receives aggressive updates, new language features, and cutting-edge capabilities with every .NET release, VB.NET often waits or misses out entirely. By choosing C#, you are aligning your software with Microsoft’s innovation roadmap, ensuring you aren’t left behind when the next paradigm shift occurs.

2. A Vastly Superior Talent Pool

Recruitment is a major challenge in software development. As the generation of developers who grew up with “Basic” syntax retires, the pool of VB.NET experts is shrinking.

In contrast, C# is one of the most popular programming languages in the world. Computer science curriculums, coding boot camps, and online courses prioritize C# and C-style syntax.

  • Easier Hiring: You will find it significantly easier to hire mid-to-senior level engineers who are fluent in C#.
  • Lower Onboarding Costs: New graduates are likely already familiar with the syntax, reducing the time and money spent on training.

3. The “Lingua Franca” of Modern Development

Syntax matters. C# uses “C-style” syntax (curly braces and semicolons), which it shares with Java, C++, JavaScript, and TypeScript.

If your organization uses a modern tech stack, your developers likely interface with JavaScript frameworks (like React or Angular) on the front end or perhaps Java on Android. A developer who knows C# can easily read and understand these other languages because they share the same structural DNA. Migrating to C# unifies the mental model of your development team, reducing the cognitive load required to switch between backend and frontend tasks.

4. Unrivaled Community and Open-Source Support

When your developers hit a roadblock, where do they go? Usually, they head to StackOverflow, GitHub, or technical forums.

Because C# is the dominant language in .NET, the community support is overwhelmingly skewed in its favor.

  • Documentation: Third-party libraries almost always provide documentation and examples in C# first (and sometimes only).
  • Samples: If you are looking for a solution to a complex algorithm or a cloud integration pattern, the code samples you find online will predominantly be in C#.

Choosing C# ensures your team has access to the largest possible repository of shared knowledge, solving problems faster.

5. True Cross-Platform Capability (Mobile & Cloud)

Modern applications rarely live solely on a Windows desktop. They need to live in the cloud (Azure/AWS), run on mobile devices, or function across Linux and macOS.

C# is the engine behind:

  • Xamarin and .NET MAUI: For building native mobile apps.
  • Unity: The world’s most popular game development engine (often used for AR/VR enterprise simulations).
  • ASP.NET Core: For high-performance cross-platform web servers.

While VB.NET is technically supported in some of these areas, the tooling, templates, and support are heavily optimized for C#. If you want your application to be portable and future-proof across different devices and operating systems, C# is the only logical vehicle.

The Verdict

Migrating from VB6 is not just a technical upgrade; it is a business transformation. While choosing VB.NET might seem like the path of least resistance due to syntax similarities, it is often a short-term fix that delays the inevitable.

Choosing C# is an investment in modernity, hireability, and longevity. It signals to your stakeholders and your development team that you are building not just for today, but for the next decade of innovation.

Ready to Modernize? Partner with the Experts

Migrating legacy systems is complex, but you don’t have to navigate it alone. Innovatix Technology Partners is the industry leader in legacy migration services, with deep expertise in transforming outdated VB6 applications into modern, high-performance .NET solutions. Whether you need a strategic roadmap or a full-scale code conversion, our team ensures a seamless transition that preserves your business logic while unlocking the power of modern technology.

Contact us today to future-proof your critical business applications.

Joe Rafanelli on Linkedin
Joe Rafanelli
Director of Migration Services at Innovatix Technology Partners
Joe Rafanelli is the Director of Migration Services at Innovatix Technology Partners, a Macrosoft, Inc. company. In this capacity, Joe acts as the single point of contact for Innovatix’s migration solutions. Additionally, he collaborates with internal technology analysts to understand requirements, work scope, and maintain client relationships ensuring their satisfaction .

Prior to joining Innovatix in May 2017, Joe had a resplendent career in the Banking Industry spanning 25 years. He focused on Account Management, Project Management, Implementation Management, and Product Development for companies like JPMorgan, Citigroup and Brown Brother Harriman.

Joe is excellent at improving the client experience by driving change management projects to completion. Joe has B.S. Finance, MBA Investment Finance, Project Management certificate & Database Management certificate.
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