Spanner comes in two versions; Spanner.prefpane and Spannerling. Spannerling allows easy menubar control of hot corner activation, whilst Spanner allows you to assign custom actions to the launch or quit af any application. These include deactivating hot corners, useful for games like Halo, MoH and Black & White which can suddenly be Exposed halfway through a game, and quitting of the finder and other applications to free up extra resources.
Changes to Spannerling in this version
Spannerling now uses the System calls as opposed to restarting the Dock.
Changes to Spanner in this version
Creation of prefpane, allowing assignation of launch and quit actions to any application.
Easy selection of any application via a Browse dialog or from a drop-down list.
Assign special actions, keypress emulation or AppleScript actions.