Good news! The Total Yijing software is (finally) available in a Vista-compatible form. I’ve downloaded, installed and upgraded and it’s running smoothly.
I wouldn’t necessarily suggest buying this one if what you most want is somewhere to store readings and keep a searchable journal. It’s easy enough to use and has some nice features (like adding your own notes to each hexagram), but it does also have annoying little niggles like not being able to scroll through the full text of a reading in one window, or having to use ctrl+enter to get a new line when writing in your journal. And the journal sorting/searching doesn’t begin to compare to Ewald’s.
However, it’s worth buying to get access to Stephen Karcher’s latest Yijing. While it’s based on the text of Total I Ching, there are also several new developments. There are clarifying edits throughout; there’s a ‘key words’ section for each hexagram with lots of contexts and relationships, in particular situating the hexagram within the ‘decades’ of life. Also, there’s an exposition of the crossline omens for each line. The software comes with a 15 day trial, which is ample time to have a good look through and try it out. (And your readings aren’t ‘held captive’ if at the end of the trial you don’t want to buy the software; you can export them to a text file via the maintenance menu.)
If you’re using Windows, I’d recommend you download and try it.