Features:

- fast file managment
- plugin architecture
- application launcher
- tabs
- session protection
- favourites
- instant calculator
- update checker
- multiple skins
- bug report
- portable
- file selection via regex
- search via wildcards, regex, mp3 tags,
   in files, regex in files
- open here command feature
- instant copy file content to clipboard
- image format onversion
- intelligent 'copy of'
- lazy plugin loading
- pasting clipboard images as files
- multiple file renaming
  (including regex and groups for multiple rules)
- disk space chart utility
- calendar plugin
- network info plugin
- junction point (symbolic links) creation
- simple process manager
- sound notification on job completion/error
- image browser
- compression/decompression support via 7zip
- coloring files via extension
- auto settings reload
- selecting files from clipboard
- going to path from clipboard
Proto is priceless (for any use)