(来自评论)

信不信由你，这只是一个组装路径问题.你必须使用汇编列表中的两个文件，而不仅仅是CoStarUtilities，即:

Believe it or not it is just an assembly path problem. You have to use both files in the assembly list, not just CoStarUtilities, ie:

 <cfset eventCollection = CreateObject(".net"
                 , "CoStar.Utilities.VideoWall.VideoWallEventActivityCollection"
                 , Paths ) />