Picking up a hardback copy of the Star Trek Encyclopedia yesterday got me hankering to fire up our CDROM version - Encylopedia '99.
Simon & Schuster put out heaps of these kind of things in the mid-late 90s. You couldn't walk into any software store then without seeing them lining the shelves.
It's crazy how popular these were in the pre .com boom considering we didn't have lengthy archives of lore/world building for years and basically had to glean info from the odd episode of a series we managed to catch
I had a hard copy of the Star Trek Chronology, unfortunately it was the second edition which erased the original version of Cochrane's ship from the timeline.