1)   SSEFind 0.6.1
SSEFind! not only searches, but also finds files on your mobile device. Narrow your search using file name filter, date, start folder. Files found can be opened / launched straight from this program.

 2)   Premium Vista Glance - File Finder 1.2
Throw away Explorer. Vista Glance is better! The core parts of Vista Glance are powerful file indexing engine and heuristic module based on fuzzy logic. Unlike other similar solutions, Vista Glance indexes average hard disk in several minutes.

 3)   Vista Ai File Finder 1
Throw away Explorer. Vista Ai is better! The core parts of Vista Ai are powerful file indexing engine and heuristic module based on fuzzy logic. Unlike other similar solutions, Vista Ai indexes average hard disk in several minutes.

 4)   TagLauncher 1.2
TagLauncher is a better way to classify your files and find them. By tagging, you put files in virtual folders but files are not limited to be in one of them. It means similar tags makes files similar, therefore finding them will be easier.