I tried the File Hound, and was impressed with the speed and with the number of file types it would check. Well done!
But I couldn't figure out how to navigate to the proper folders, except for copy&pasting the path (I see Mouser also has mentioned this). However, I have my texts placed in various folders, and typing User\*.* simply won't do = 170.000 files. And if I merely check one folder at a time, other programs will do faster. So, my feature request is, for File Hound to be able to search a (plural) number of fav' folders only, please.