Summary:

A legacy manufacturing application built on VB6 needed rapid modernization to .NET without business disruption. Matsyaa used an AI-assisted approach to accelerate analysis, conversion, validation, and rollout. 

Context:

A manufacturing-oriented legacy VB6 application had become hard to maintain, slow to change, and risky to extend. The modernization goal was to move to C#/.NET while preserving behavior and minimizing downtime.  

Challenge:

• Complex business rules embedded across VB6 forms/modules with limited documentation 

• High regression risk and limited time window for cutover 

• Need for repeatable validation and safe deployment path 

Solution Delivered:

• 3-week proof-of-concept to validate conversion strategy and quality gates 

• AI-assisted code understanding and conversion scaffolding to reduce manual rewrite effort 

• Automated test/validation harness to compare legacy vs modern outputs 

• Incremental rollout plan to reduce downtime and business risk 

  
  

Outcomes:

• Accelerated modernization timeline using automation-first conversion workflow 

• Reduced regression risk through structured validation gates 

• Future changes became easier due to improved architecture and maintainability 

Tech Stack:

• VB6, C#, .NET, automation tooling, CI-style validation gates 

  
  

If you are modernizing a legacy application (VB6/.NET/Java), we can run a 2-3 week proof-of-concept to confirm feasibility, timeline, and quality gates. Contact: matsyaa.com/contact