Mentioned here: http://mapwindow5.codeplex.com/workitem/25396
The attached shapefile causes MW5 to crash.
I did a quick analyses and the shapefile is displays properly on the map, the table editor can open it and the shape is not invalid.
The error is:
I did a quick look at the code and the problem is with the fields isPlanted and isLabel. In the dbf-file they are defined as boolean.
MW5 doesn't have this type.
Most likely the boolean type needs to be added in MapWinGIS.
In the table editor some changed need to be made as well, because it is not showing the booleand properly either: