VB.NET & VB6
MIGRATION
WE REWRITE VISUAL BASIC APPLICATIONS INTO MODERN TYPESCRIPT WITHOUT LOSING BUSINESS LOGIC OR GOING OFFLINE.
VB6 RUNS IN PRODUCTION.
MICROSOFT ENDED SUPPORT.
VB6 has no security patches. Every day it runs is a liability.
Off-the-shelf migration tools can't replicate 15 years of custom business logic.
Most rewrites lose institutional knowledge — workflows your team built over a decade.
A failed migration costs more than a careful, phased rewrite.
MIRROR. MODEL.
MIGRATE. MONITOR.
FOUR PHASES. ONE PROVEN PROCESS. YOUR SYSTEM REBUILT WITHOUT LOSING WHAT MAKES IT YOURS.
MIRROR
Map every workflow, edge case, and business rule before a single line is rewritten.
MODEL
Design the TypeScript architecture — schemas, APIs, data flows — built around your exact business logic.
MIGRATE
Iterative, zero-downtime rewrite with parallel-run validation. Cutover only after parity is proven.
MONITOR
90-day stability window. New system runs before the old one goes dark. Data integrity verified end-to-end.
ZERO DOWNTIME.
ZERO DATA LOSS.
Parallel-run validation — new system produces identical output to legacy before cutover
Business logic captured in tests before a line is rewritten
90-day stability window — legacy system stays live until new system is proven
A REAL MIGRATION.
REAL RESULTS.
A MID-SIZE ENTERPRISE BUSINESS HAD RUN THEIR CORE CRM ON VB.NET FOR 14 YEARS. HUNDREDS OF THOUSANDS OF RECORDS. CUSTOM WORKFLOWS FOR THEIR ENTIRE OPERATIONS. WE MIGRATED IT TO TYPESCRIPT — ZERO DOWNTIME, ZERO DATA LOSS, ZERO BUSINESS LOGIC LOST.
We've migrated legacy VB applications — including 15+ year old enterprise CRMs — to modern TypeScript.
SEE THE FULL PORTFOLIOANY QUESTIONS?
No. We run your legacy and new systems in parallel until the new stack has proven itself under real load. Cutover happens only after a 90-day stability window with zero data divergence — no maintenance windows, no flash cutovers.
The MIRROR phase maps every workflow, edge case, and business rule before we write a line of new code. We test output parity — the new system must produce identical results to the legacy system on the same inputs before anything ships.
TypeScript runs on Node, compiles to a deployment artifact that fits modern cloud infrastructure, and its type system catches the class of bugs that plague large rewrites. .NET migration requires two ecosystems; Python lacks the compile-time guarantees that make a large-scale rewrite safe.
Scope drives timeline. A focused 50K-LOC CRM with well-understood business rules can be production-ready in 3–6 months. Larger systems with unknown business logic or poor documentation take longer. The MIRROR phase gives you an honest timeline estimate before we commit to a schedule.
Legacy migrations start at $25K because the MIRROR phase alone is substantial work — we scope based on LOC, business-rule complexity, and integration surface area.
START YOUR MIGRATION.
BOOK A FREE 30-MINUTE TECHNICAL REVIEW — WE'LL SCOPE YOUR MIGRATION AND GIVE YOU AN HONEST TIMELINE ESTIMATE.