The autoload directory is for standard Vim autoload scripts.

These are functions used by plugins and for general use. They will be loaded

automatically when the function is invoked. See ":help autoload".

gzip.vim for editing compressed files

netrw*.vim browsing (remote) directories and editing remote files

tar.vim browsing tar files

zip.vim browsing zip files

paste.vim common code for mswin.vim, menu.vim and macmap.vim

spellfile.vim downloading of a missing spell file

Omni completion files:

ccomplete.vim C

csscomplete.vim HTML / CSS

htmlcomplete.vim HTML

javascriptcomplete.vim Javascript

phpcomplete.vim PHP

pythoncomplete.vim Python

python3complete.vim Python

rubycomplete.vim Ruby

syntaxcomplete.vim from syntax highlighting

xmlcomplete.vim XML (uses files in the xml directory)