Legacy System Modernization
Your VB6 application still works. That's the problem.
Visual Basic 6 hasn't been officially supported by Microsoft since 2008. If your business still depends on a VB6 application, "it still runs" is doing a lot of quiet, unacknowledged work.
VB6 applications are usually load-bearing: they were built to solve a real operational problem, and years later they're still doing it — often on a Windows version that's also aging out, with no vendor support, and with the original developer long gone. Every year the risk grows: a hardware failure, an OS update, or an employee departure away from a system nobody can service.
We modernize VB6 applications the way we approach any legacy system: understand exactly what the current application does — including logic buried deep in forms and modules — and rebuild it as a modern, maintainable web or desktop application that a normal developer can support going forward.
Does this sound familiar?
- The application only runs on an old, unsupported version of Windows
- It's tied to hardware that would be difficult or impossible to replace
- The original developer is gone and no one fully understands the code
- You're one hardware failure away from a serious business disruption
- It can't be accessed remotely or from outside the office
- New hires need training on software that looks and feels decades old
Why waiting usually makes this more expensive
Legacy application risk doesn't announce itself — it accumulates quietly until a failure forces the issue on the worst possible timeline: an emergency, with no time to plan properly and no leverage to negotiate. Modernizing on your own schedule, before something breaks, is almost always cheaper and safer than modernizing during a crisis.
The good news is that a VB6 application, however old, is still a complete specification of what your business actually needs the software to do. That's valuable. Rebuilding from that real specification is faster and lower-risk than starting over from a blank page and hoping nothing important gets missed.
How we modernize a VB6 application
Understand the current system
- Trace the forms, modules, and logic end to end
- Document business rules the application actually enforces
- Identify integrations with other systems or hardware
- Assess the underlying data and its quality
Plan the path forward
- Recommend web, desktop, or hybrid based on how it's used
- Decide what should change versus what should stay identical
- Sequence the rebuild to avoid one risky "big bang" cutover
- Set a realistic, honest timeline before any commitment
Rebuild on modern foundations
- A supported, maintainable technology stack
- The same workflows your team already knows
- Access from modern devices where that helps the business
- Security appropriate to how the system is actually used
Cut over safely
- Data migration, tested before it's trusted
- A parallel run period where it makes sense
- Training for the team on day one
- Ongoing support so it stays current this time
Who we help with this
- Manufacturing, distribution, and operations teams on aging Windows software
- Businesses whose original VB6 developer is no longer reachable
- Companies whose insurer, auditor, or bank has flagged unsupported software
- Anyone whose entire workflow depends on a machine nobody wants to touch
Questions we hear a lot
Still running critical work through VB6?
Tell us what it does. We'll help you plan a modernization that doesn't bet the business on one big leap.