1 Can't create communication structure. Please use the context menu handler or drag the file onto the drop target. 2 Can't find CodedDrag shell extension. Please use the context menu handler or drag the file onto the drop target. 3 Can't open communication structure. Please use the context menu handler or drag the file onto the drop target. 4 Can't open shared communication structure. Please use the context menu handler or drag the file onto the drop target. 5 Can't map communication structure. Please use the context menu handler or drag the file onto the drop target.