can insert the contents of one file into a page when loaded, allowing many pages to insert a common copyright notice, etc. A shtml file can also execute a cgi and insert the output. Many more functions exist, see the official documentation here for detailed instructions.

very powerful regular-expression based url rewriting and redirection, used in .htaccess

restrict access of subdirectories with a username and password, used in .htaccess

run a command or script at a certain time on certain days, highly configurable

latest version, used to run popular cgi scripts

our ftp server supports resuming aborted uploads and downloads, if your client can do it