Information from Convekta website:
Chess Assistant 10 Professional � the most advanced chess database system. Lightning fast searches in databases with millions of games. Automatic weekly updates with thousands of new games. Advanced analysis functions, built-in CQL search and much more. Professional package includes Deep Rybka 3 engine and 4,000,000 game database.
Chess Assistant 10 includes Chess Opening Encyclopedia 2008
Deep Rybka 3 engine can be used in Fritz and other chess programs.