Wilson Software's website is the home of arguably the best suite of poker software in the world. Many of the pros use Wilson to rank starting hands in different game settings and try the odds for certain cards at key situations. Also very good for beginners to get hold of the basics and intricacies of the game by playing the computer. Very flexible software. Expensive but worth the price...
Video Bonus Poker 2.0
This is a Video Poker Game that teaches strategies and maintains your playing history. 1.7 MB size. This games runs on stock windows version W95-98/ME & NT4.0/5.0. No DirectX or OpenGL drivers required.
Paragon Poker Suite 3.1
Poker card game with five user skill levels (try beating it in expert mode!) and tournament-style player elimination. The package still features the original Poker Calculator which enables you to determine the odds of winning or improving any starting poker hand.
The University of Alberta Computer Poker Research Group presents the playing program named Poki. Poki is in Java, and plays a reasonably good game of poker, but there remains considerable research to be done to play at a world-class level. Go in a try to beat Poki, when you have the chance! Many other academical poker links are provided.