Predefines command names to load an associated AutoLISP file
(autoload filename cmdlist)
The first time a user enters a command specified in cmdlist, AutoCAD loads the application specified in filename, then continues the command.
nil
If you associate a command with filename and that command is not defined in the specified file, AutoCAD alerts you with an error message when you enter the command.
The following causes AutoCAD to load the bonusapp.lsp file the first time the APP1, APP2, or APP3 commands are entered at the Command prompt:
(autoload "BONUSAPP" '("APP1" "APP2" "APP3"))