A fix is now available from Microsoft for the Visual Studio 2010 issue that causes a design time error when adding our Engine ActiveX controls to the form designer. The issue and a temporary workaround were described in a previous post on this blog. We've reported the issue to Microsoft, and an official fix is now available on MSDN as KB2066987. This fix will also be included in the next Visual Studio 2010 service pack. Enjoy our globe and map controls in your .Net 4.0 applications!