Appendix A. The Upgrade Challenge

IN THIS APPENDIX

• Deciding Whether to Upgrade

• Planning Your Upgrade

• The Code Advisor for Visual Basic 6.0

• Resolving Architectural Issues

• Upgrading

For new development projects, there are many reasons to use Visual Basic .NET rather than Visual Basic 6.0. But what if you are charged with maintaining an existing code base that was written in Visual Basic 6.0? Most companies can't afford to spend the time and money required to scrap everything and start over. So, you need to decide what code and components to upgrade, what to maintain in Visual Basic 6.0, and how to do it. There are no easy answers, but there are tools that can help make the task more manageable.