Copernic is working on a Desktop/Web Search program. It over you to search the ; Web, Your Pictures, Your Music, Your Videos, Your Files, Your Emails, Your Favorites, Your History and Your Contacts.
It's indexing on the fly all new files you put on your computer and it is possible to configure the background indexing while you don't use your computer. He is amazingly fast for the desktop item, but still buggy with the "matching whole word" search.
It use the data from MetaCrawler in the Web Search, but this can change in the next beta realeased who should be out in the next few weeks.