TreePad X Enterprise (12 Gb- single-user) Description:

TreePad X Enterprise (single-user) represents the 'next generation' Personal Database, Word Processor and Organizer with the unique ability to access, edit, store and search databases of up to 12 Gigabytes.
Additionally, you can open up to EIGHT databases SIMULTANEOUSLY. TreePad X Enterprise has been redesigned from the ground up using the most advanced database technology for maximum performance and reliability.
More features: spell-check in 20 languages, thesaurus, powerful import/export options, images, tables, text marker, article auto-save, text color, text background color, text formatting, paragraph formatting, character map, search engine, auto-indent, hyperlinks, tray, resize tables, sort/number subtrees, copy/paste of trees, etc.
Ease of use: despite its obvious power, TreePad Enterprise is as easy to use as the other TreePad versions or any remotely similar product currently on the market.