A mechanism to start automatically a script or program as soon as the operating system or execution environment that executes it is ready.
In general terms, autostart is mechanism whereby a script or program is started automatically as soon as the operating system or execution environment that executes it is ready. The script or program to execute typically needs to be registered in some list of autostart programs.
A typical example of autostart feature is the autorun, which starts a program on a medium as soon as the medium (such as CD or USB key) is inserted in the reading device.
Use this tag for questions about implementations of an autostart feature, or issues with autostarting a particular program.