Cost of Maintaining VB6 vs Migrating to .NET

In 2026, the debate over Visual Basic 6 (VB6) is no longer just about “old code”—it’s about financial risk management. With Windows 10 having reached its official end-of-life in late 2025, the “maintenance” of VB6 has shifted from a nuisance to a massive line item on the balance sheet. If you’re still supporting a VB6 monolith, you aren’t just paying for developers; you’re paying for the survival of an ecosystem that is actively being phased out. Here is the cold, hard reality of the costs invol