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Last year I spent a lot of time trying to help companies understand their options for VB6 code, including creating this centralised resource to Secure your Visual Basic 6 investment.

Two partners were really helpful in pulling this together, ArtinSoft and Code Architects. I was really pleased to get an email from Code Architects today pointing me at a case study for a successful large migration project. Well done folks.

Top level stats:

  • From the 25,000 LOC PoC “It took 2.5 hours to get a project that would compile and run using VB Migration Partner”
  • The effort required for the project included 3,650 developer-hours to migrate the code, 3,400 hours for code review and refactoring, and 1,300 hours for testing
  • Code review and refactoring was only necessary as more development is planned and the original team no longer exists
  • Three developers migrated all 950,000 lines of Visual Basic 6.0 code to the .NET Framework in only nine months
  • Cost to end client was 750,000 euros vs estimated 3 to 5 million Euros that it would have cost to implement a com-mercial ERP system


Posted on Thursday, December 10, 2009 12:44 PM | Back to top

Comments on this post: Migration to .NET of 950,000 lines of Visual Basic code

# re: Migration to .NET of 950,000 lines of Visual Basic code
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Thank you Eric for blogging about our case study.

Also, you might find it interesting that this experience has become an official Microsoft Corp case study on VB6 migration. You can find more details here:

Best regards,

Francesco Balena
Code Architects, Italy
Left by Francesco Balena on Dec 10, 2009 1:50 PM

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