SmpMapX OCX...   
This powerful ActiveX control for Mapping/GIS applications, was developed by TRIUS, Inc., and originally distributed as shareware.  It was later further updated and enhanced, is now exclusively marketed, distributed and supported by Undertow Software Corp. under the product name MapTivate. For more information, visit Undertow's web site.

MapTivate (originally known as SmpMapX) may be the GIS/Mapping solution you've needed all this time. Contact Undertow Software for additional information, pricing, support, licensing questions, etc.