Inter-op wonk Simon Guest has posted a fairly comprehensive article showing how to use NEON’s ServiceBuilder to integrate with host systems (NEON recently acquired this technology from clientsoft, so people maybe be familiar with this already). ServiceBuilder integrates well with VS.NET to allow fields to be mapped to character-based screen fields. I think this approach is a perfectly valid approach for integrating with host systems, especially if the screen definitions are fairly static. I’m getting ready to post something on my own experiences in the host integration space after a recent stint using Microsoft Host Integration Server 2004 to (attempt) to talk to some host systems.