VS2010 was not debugging my AutoCAD .NET projects. For weeks I have been thinking the reason was because I am new to this. The following link describes this problem and a solution that requires a simple edit to the acad.exe.config file. Now the VS2010 debugger works for me. I am ululating.
http://social.msdn.microsoft.com/Forums/en/vsdebug/thread/22d4c3d3-bf77-40ed-8b1b-64223019f3f1
