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Legacy · VB6

Your VB6 app, rebuilt without losing the logic.

We rebuild the Visual Basic 6 application your operation runs on into a modern TypeScript stack, at a fixed price, in weeks, with every flow proven equal to the old system.

The risk

  • Microsoft recommends replacing VB6 applications.
  • One or two people keep the app alive.
  • It cannot take what the business asks for now: integrations, AI.

The clock

  • Status

    Apr 2008

    Visual Basic 6

    IDE unsupported since April 2008; Microsoft keeps the 32-bit runtime only for the lifetime of current Windows versions and recommends replacing VB6 applications.

  • Oct 2027

    SQL Server 2017

    end of support

What a rebuild looks like

  1. Step 0

    Blueprint

    One week, fixed scope and price, exit clause.

  2. Step 1

    Rebuild

    Into Next.js on Vercel and Postgres.

  3. Step 2

    Parity proof

    Your real flows recorded on the VB6 system and replayed on the new one.

  4. Step 3

    Cutover

    The VB6 system is retired.

  5. Step 4

    Care + Improvements

    Monthly support, evolution and new features.

Four guarantees: typical 4–8 weeks · fixed price agreed before starting · 100 % parity flow by flow · delay credit if we are late.

The dates are already on the calendar.

62 %

of US organizations run at least one legacy system.

Source: Saritasa, “State of Legacy Systems” survey, May 2025, n=504 US organizations.

4 in 5

IT leaders have had at least one modernization project fail.

Source: Wakefield Research for vFunction, 2022, n=250 US IT leaders.

Sources

  1. 62 % of US organizations run at least one legacy system. Saritasa, “State of Legacy Systems” survey, May 2025, n=504 US organizations.
  2. 4 in 5 IT leaders have had at least one modernization project fail. Wakefield Research for vFunction, 2022, n=250 US IT leaders.

Tell us about the system nobody wants to touch.

30 minutes. We tell you whether a Blueprint makes sense.