A Trojan programme was a type of computer program that could be used to restore information deleted from a computer system. During the time of the Clone Wars, a slicer placed a Trojan program into the computer system of the Comet Broom Service. The program was later activated by the Dark Jedi Garth Ezzar and used to restore some deleted navigational data, as part of a plot to incriminate the Jedi Order as having had involvement with Comet Broom's Cometary Water Reclamation Project.