TreeGX is a windows forms component for advanced presentation of hierarchical data.
With TreeGX at a glance connections can be identified, paths discovered and data relationships grasped all in an easy to use format.
New release of TreeGX adds high-performance zooming, node context menu support, XML serialization and easy keyboard navigation. TreeGX provides more organic presentation of your hierarchical data and allows you to present.
Fully functional trial version is available at http://www.treegx.com