how to load an AutoLISP routine with VB.
Here is a quick demo using a DDE link. This only works with R14,
the wording would have to be changed to work with earlier versions.
Put sample.lsp in an ACAD path directory and start LoadLISP. The
rest is self explanatory I hope. Requires VB runtime module MSVBVM50.dll
which I don't include due to file size.