I'm not trying to be a wet blanket or the grammer police but I think "TypesHandler" should be "TypeHandlers":
http://svn.apache.org/repos/asf/incubator/ibatis/trunk/cs/mapper/IBatisNet.DataMapper/TypesHandler/ I've said it outloud to many times that I've confused myself :-/ This namespace is a double-word and the plural is on the last word instead of the first word: http://svn.apache.org/repos/asf/incubator/ibatis/trunk/cs/mapper/IBatisNet.DataMapper/MappedStatements/ Good job on the new code Gilles :)