Upgrade Companion - Visual Basic

No silver bullet exists. The VBUC struggles with:

The Visual Basic Upgrade Companion is a valuable tool for developers looking to migrate VB6 applications to the .NET ecosystem. While it automates much of the conversion process, successful migration projects often require careful planning, a good understanding of both VB6 and .NET, and some degree of manual intervention. The tool's effectiveness can vary depending on the complexity of the source project, but it remains a leading choice for VB6 to .NET migrations.

: Unlike basic wizards that convert one project at a time, VBUC can handle multiple linked projects, resolving references and dependencies across the entire solution during the upgrade. visual basic upgrade companion

The tool doesn’t just translate Dim x As Integer to Dim x As Integer in .NET. It understands the intent of legacy patterns. For instance, VB6’s default form instance logic, its peculiar error handling ( On Error GoTo ), and its reliance on COM objects are not merely copied; they are refactored into proper .NET exception handling and class constructors.

: Users can choose to migrate their legacy code to either VB.NET or C# . No silver bullet exists

If your company still runs on VB6, you have two futures. One involves a decade of pain rewriting code. The other involves a weekend with the Upgrade Companion. Choose wisely.

This buys development teams time. They can upgrade the UI piecemeal, replacing COM controls with native .NET controls (like DataGridView replacing the old FlexGrid ) over several release cycles rather than all at once. The tool's effectiveness can vary depending on the

: VBUC produces 100% native code without requiring proprietary third-party runtimes, which ensures the migrated application is easier to maintain using standard Microsoft tools.