: A basic tool included in older versions of Visual Studio (like 2008) for converting projects to VB.NET. While useful for simpler projects, results for complex legacy code can often be "ugly" and require significant manual cleanup. Key Migration Considerations
: By automating up to 99.9% of code translation, these tools can be significantly faster than manual rewrites. VB Migration Partner +6 Top Migration Tools The market features several specialized tools, each with varying levels of automation and support: Visual Basic Upgrade Companion (VBUC) : Widely considered an industry leader, it supports migration to both VB.NET and C# and is frequently recommended by Microsoft . VB Migration Partner : Created by VB experts, it uses a "convert-test-fix" methodology that allows developers to add "pragmas" (special comments) to the original code to guide the conversion process without manual post-migration fixes. gmStudio : A high-end re-engineering environment that offers deep customization and tracking for large-scale enterprise migrations. .NET Upgrade Assistant : A free tool from Microsoft that helps move projects from older versions of .NET to modern .NET (Core/5/6+), with some support for VB6-to-VB.NET steps. VB NETamorpher : Focuses on enterprise-scale applications and uniquely handles complex "Variant" usage without proprietary runtime dependencies. Microsoft Learn +8 The Migration Process A standard automated migration typically follows these steps: Assessment visual basic migration tool
: Developed by Mobilize.Net, this is widely regarded as the industry-leading tool. It uses AI-assisted algorithms to convert VB6 code to C# or VB.NET while preserving symbol names and comments. It supports targeting modern frameworks like .NET 6 . : A basic tool included in older versions