http://www.palisade.com/precisiontree

There have been extensive improvements to the User Interface, including right-click menus, the ability to collapse/expand multiple levels of decision tree nodes, and a new Application Settings menu.

New functionality includes a "Find" utility that makes it easier to work with large models, a Model Errors dialog to help pinpoint problems, and extensive Excel VBA support.

PrecisionTree is available separately, or as part of The DecisionTools Suite.