As mentioned in a comment on a recent post, Stephen Preston, our DevTech Americas Manager, has put together a useful tool and accompanying DevTV session to help people migrate their VBA code to VB.NET. The resultant code uses COM Interop to call into AutoCAD.
|AutoCAD VBA to .NET Migration Basics
|download (44.3 Mb)
Stephen considers this presentation, and the migration tool itself, to be in draft form. If you have feedback, please do send Stephen an email.