MSN Desktop Search

From IeXwiki

MSN Desktop Search is some kind of "google for your hard drive". This program can index all files on a PC and even read their Tags (as in MP3 Files for example) using certain filters. While it takes some time to index all files at the beginning, it is very fast later on - showing results almost instantaneously. Longhorn will have a Search Bar like this one already built-in.

The Download is available here. The previously mentioned filters can be found here.

There are several programs out there doing something similar, like Google Desktop Search or Copernic Desktop Search.